Edgewater Networks 388CC Parts list manual

388CC
388 Center Console
OWNER ASSISTANCE MANUAL
Revised 2014

388CC SPECIFICATIONS
LENGTH: 37’10” (11.5m)
BEAM: 11’ (3.4m)
DRAFT (boat only): 22” (56cm)
BOAT WEIGHT: 9600lbs (4354kg)
WEIGHT CAPACITY: 4300lbs (1950kg)
PERSON CAPACITY: 12
PERSON WEIGHT: 1980lbs (900kg)
FUEL CAPACITY: 450gal (1703.44L)
TRANSOM HEIGHT: Twin-30” OR Trip 25”-30”-25”
MAX POWER: 1050hp (790kw)
COCKPIT DEPTH: 28” (71cm)
COCKPIT AREA: 184sq/ft (17m²)
APPROX LENGTH ON TRAILER: 47’ (14.3m)
BRIDGE CLEARANCE:
W/OUT TOP 10’ 6” (3.2m)
W/T-TOP 12’4” (3.76m)
FLOTATION: UNSINKABLE
HULL DEADRISE: 22°
CE
12 PERSONS OR 1547kg
790kw MAX POWER
BRATING

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Dear EdgeWater 388CC Owner:
Congratulations on purchasing one of the finest offshore boats ever built. It has been constructed with
care from the finest available materials. At EdgeWater we take great pride in the quality and
craftsmanship that goes into each boat. We believe you’ll have many years of enjoyment from your
new EdgeWater and thank you for entrusting your leisure time to one of our fine products.
This manual has been assembled to help you learn more about your new boat and increase your
enjoyment of it. Your EdgeWater has been built for a “Lifetime on the Water”.
Boat safe and boat smart, we wish you many years of boating pleasure.
Sincerely,
Peter Truslow
President
EdgeWater Power Boats LLC

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Service Information
Please fill out the information below completely. It will help us in assisting you in the event your
EdgeWater 388CC needs service.
Customer Name
Address
City State Zip
Phone Cell Business
E-mail Address
Dealer Name
Address
City State Zip
Phone Fax
Purchase Date Delivery Date
Engine Make/Model Engine Serial #
Engine Make/Model Engine Serial #
Engine Make/Model Engine Serial #
Hull Number DMA Ignition Key #
EdgeWater Power Boats LLC reserves the right to make alterations in the standard and
optional equipment without incurring obligation to those boats already having been built.
Every effort has been made to ensure that the information in this manual accurately
describes vessels being built at the date of printing.

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Table of Contents
Chapter 1 General Information..................................................................6
1.1 General................................................................................................................................6
1.2 Owner / Operator Responsibilities.......................................................................................6
Chapter 2 Helm Control Systems..............................................................7
2.1 General................................................................................................................................7
2.2 Steering System...................................................................................................................7
2.3 Engine Throttle and Shift Controls.......................................................................................7
Chapter 3 Propulsion System....................................................................8
3.1 General................................................................................................................................8
3.2 Engine Cooling System........................................................................................................9
3.3 Propellers ............................................................................................................................9
3.4 Engine Power Tilt and Trim................................................................................................10
3.5 Engine Instrumentation .....................................................................................................10
Chapter 4 Fuel System.............................................................................12
4.1 General..............................................................................................................................12
4.2 Fuel Fill ..............................................................................................................................12
4.3 Fuel Vent............................................................................................................................12
4.4 Fueling...............................................................................................................................13
4.5 Fuel System Maintenance .................................................................................................13
4.6 Fuel Filters.........................................................................................................................13
Chapter 5 Electrical System ....................................................................13
5.1 General..............................................................................................................................13
5.2 Panel Switches ..................................................................................................................14
5.3 Electrical System Maintenance..........................................................................................14
Chapter 6 Raw, Waste & Freshwater Systems.......................................15
6.1 General..............................................................................................................................15
6.2 Livewell Operation .............................................................................................................15
6.3 High Pressure Washdown .................................................................................................15
6.4 Freshwater System............................................................................................................15
6.5 Waste System....................................................................................................................16
6.6 Raw Water System Maintenance.......................................................................................16
Chapter 7 Drainage System.....................................................................17
7.1 General..............................................................................................................................17
7.2 Cockpit Drains....................................................................................................................17
7.3 Transom Bilge....................................................................................................................17
7.4 Locker, Fishbox, & Livewell Drains....................................................................................17
7.5 Amidships Bilge & Console Sump .....................................................................................17

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Chapter 8 Safety Equipment....................................................................18
8.1 Required Safety Equipment ..............................................................................................18
8.2 Suggested Safety Equipment - Inshore.............................................................................19
8.3 Suggested Safety Equipment – Offshore...........................................................................19
Chapter 9 Safe Operation.........................................................................20
9.1 Pre-Cruise Check List........................................................................................................20
9.2 Basic Rules of the Road ....................................................................................................21
9.3 Safe Operation...................................................................................................................22
9.4 Towing or Being Towed.....................................................................................................22
9.5 Stopping the Boat ..............................................................................................................23
9.6 Docking..............................................................................................................................23
9.7 After Operation .................................................................................................................23
9.8 Trailering Your Boat...........................................................................................................23
9.9 Launching Your Boat .........................................................................................................24
9.10 Retrieving Your Boat........................................................................................................24
Chapter 10 Routine Maintenance............................................................25
10.1 Exterior Hull and Deck.....................................................................................................25
10.2 Engine..............................................................................................................................26
Chapter 11 Exterior Equipment...............................................................27
11.1 Anchor Locker/Windlass..................................................................................................27
11.2 Boarding Ladder ..............................................................................................................27
11.3 Trim Tabs..........................................................................................................................27
11.4 Bow Thruster.....................................................................................................................27
Chapter 12 Seasonal Maintenance..........................................................28
12.1 Engine..............................................................................................................................28
12.2 Hull...................................................................................................................................28
12.3 Storage ............................................................................................................................28
12.4 Trailer...............................................................................................................................28
Appendix .....................................................................................................29

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1/General Information
1.1 General
Your EdgeWater 388CC is a semi-custom offshore fishing vessel that is designed to be
powered by dual or triple outboard engines.
1.2 Owner / Operator Responsibilities
Registration
Registering your boat is important to you. Federal Law requires that all powered, undocumented
vessels be registered in their state of principal use. Contact the appropriate agency in your local
state to obtain specific registration information.
Reporting Boating Accidents
All boating accidents must be reported to the proper authorities in the state that the accident
occurred. If someone dies or disappears as a result of the recreational boating accident, it must
be reported immediately, with a formal report being made within 48 hours. If there is damage of
more than $500, or if the boat is completely lost, a formal report must be made within 10 days.
Questions regarding accidents may be directed to the Boating Safety Hotline, 800-368-5647.
Education
Whether or not you are an experienced boater, attending a Boating Education Course can be
beneficial. If you are inexperienced, it is the best and safest way to begin your life on the water. If
you are an experienced boater, it’s always good to sharpen your skills.
Required Equipment
The U.S. Coast Guard requires certain equipment on each boat. In addition, they also set
minimum equipment and safety standards. For more detailed requirement information, obtain
“Federal Requirements And Safety Tips For Recreational Boats”, by contacting the Boating Safety
Hotline, 800-368-5647.
Some states and local agencies require equipment that is not required by the U.S. Coast
Guard. Your local agency or dealer can provide specific information regarding these non-
standard requirements.

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2/Helm Control Systems
2.1 General
The helm station is the control center for the boat. The main control systems are the engine
throttle and shift controls, the steering system, the trim tab controls, and the bow thruster control.
These provide the operator the ability to control speed, direction, boat trim, and attitude. Each
manufacturer provides manuals on the operation and use of their systems.
2.2 Steering System
General
The manual that comes with your steering system provides specific information on your steering
system.
The SeaStar® helm pump is an axial piston pump. It has a built-in lock valve to prevent the
steering load of the engines from feeding back to the boat operator. When the steering wheel is
turned clockwise, hydraulic fluid is pumped out of the helm unit, into the starboard hydraulic line
and then into the cylinder. As the fluid is pumped into one side of the steering cylinder, an equal
volume of fluid is displaced from the opposite side, moving the steering cylinder body to port. The
cylinder body is connected directly to the engine’s stern arm, which moves the front of the engine
to port and puts the boat into a starboard turn. The fluid displaced from the cylinder returns to the
helm pump. Please see diagram in the manual’s appendix for a visual representation of this
system. In the event of a power assist failure, the steering system will still function normally but in
a manual mode, which requires greater steering effort by the operator.
While running at slow speeds, most boats tend to wander slightly back and forth. Keeping the
wheel in the center without overcompensating for the slight wandering will prevent over steering
and reduce the tendency to wander.
Steering System Maintenance
Routine system inspection should occur regularly. Cables, hoses, linkage and helm assemblies
should be inspected for wear, corrosion, cracking, or deterioration. Cleaning and light grease
should be applied to all exposed metal parts and other damaged or deteriorated parts should be
replaced as soon as possible. Cleaning fluids containing ammonia, acids or any other corrosive
ingredients MUST NOT be used for cleaning any part of the steering system. Failure to comply
will cause serious damage to the system, which could result in an accident or injury.
2.3 Engine Throttle and Shift Controls
Refer to the engine manual supplied with your engine for specific information on your controls.
The ones depicted are those supplied by Yamaha®.
There are three major components of the engine throttle and shift controls: handles, throttle
cable, and shift cable. Throttle and shift cables are push-pull and are connected to the fuel system
(fuel injection throttle bodies) and to the shifting rod linkage. By moving the handles forward and
back, the operator controls the amount of fuel and air being used and the gear selector for

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forward, neutral and reverse. Careful use of the controls provides smooth, responsive and safe
operation.
Do not bring the throttle back abruptly to stop the boat unless it is an emergency. Allow
time for the engine RPM to come down to idle before shifting to reverse or severe gearbox
damage could occur. PLEASE REFER TO YOUR ENGINE OWNER’S MANUAL FOR
FURTHER OPERATIONAL PROCUDURES FOR YOUR OUTBOARD.
Engine Stop Switch
This device is designed to shut down the engine in the event that the operator is thrown away
from the helm station. The operator should always wear the engine stop switch lanyard while the
boat is in motion. Pulling the lanyard from the control will stop the engine. If the engine will not
crank properly, the lanyard may not be properly attached to the engine stop switch.
Do not use the engine stop switch to stop the boat unless it is an emergency as it may
impair your ability to quickly re-start the engine.
**NOTE** Each ignition key has a 3 digit number stamped on it. Please record this number
for future reference on the service information page in the front of this manual.
3/Propulsion System
3.1 General
Your new EdgeWater 388CC is designed to be powered by dual or triple outboard motors. Most
2-cycle outboards currently use an automatic system to mix the oil with the engine before the
engine uses it. If equipped with 2-cycle engines, there will be oil tanks located inside the
mechanical access space and the oil fills will be located on the motorwell side of the aft deck.
Make sure the oil tanks always have a sufficient amount of the recommended 2-cycle oil for your
cruise, plus some reserve. Most 4-cycle engines require oil be maintained in the crankcase.
Always check the crankcase oil level before each day’s run.
Always follow the manufacturer’s recommendations and use only the recommended oil
types.
Don’t attempt to service your outboards or any of their components unless you are
thoroughly familiar with its operation and dangers. Many of the moving part components
are exposed and can pose an extreme danger to anyone unfamiliar with their operation.
Always leave the servicing to a qualified technician.
Each manufacturer provides manuals designed to assist you in the proper operation and
maintenance of your new engine(s). Follow their guidance and schedules for proper operation of
your new engine(s). With a modern outboard there is little to do as long as proper maintenance is
performed, in accordance with the manufacturer’s recommendations. If the boat is to be kept in
saltwater for an extended period, electrolysis and marine growth can become a problem. When
leaving your boat in salt water overnight or for an extended period, tilt the engine(s) as high out of
the water as possible. This will decrease the possibility of marine growth on the outside of the
engine(s), as well as reduce the potential of marine growth compromising the cooling water inlets
in the lower unit(s), which can cause overheating.

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Do not paint your outboard’s lower units with paints designed for boat hulls. Some can
cause severe damage to your engine. Check with your engine manufacturer to get their
recommendation.
Do not attempt control adjustments unless you are very familiar with their function, operation
and adjustment. Failure to properly adjust the system components can adversely affect your
boat’s performance and safety. Mis-adjustment can also cause severe control, engine or lower
unit damage.
Please return all warranty cards for boat, engines and other related items. This will assist
you in the event you have a warranty problem.
3.2 Engine Cooling System
Most outboard engines are cooled by water taken in through ports in the lower part of the drive
section. Make sure these ports are free of debris or other items that might cause the flow to be
restricted. Maintain a routine vigilance to see that the visual inspection streams have a steady
flow of water. If they do not, shut down the engine to see if they are clogged or if there is a more
serious problem. Be especially watchful if you have gone through an area of vegetation or
shallow water as the intake ports can become clogged with weeds, dirt or other debris.
Do not run your outboards without water coming into the lower unit. The water pump
impellers can be damaged in only seconds of this type of operation.
3.3 Propellers
A turning propeller moves the boat through the water, forward or backward. They should
always be clean and free from nicks or dings, which can adversely affect performance. Your
dealer can assist you in the proper selection of a propeller for your boat. This selection is based
on the horsepower of the engine and its relationship to the size and weight of the boat.
Propeller sizes are determined by two numbers, which appear on different propellers at various
locations. They are listed in sequence, for example 13 x 17. The first number is the diameter of
the propeller and the second is the pitch. Pitch is the theoretical distance the propeller moves
through the water with each complete revolution, the larger the number the greater the theoretical
movement. It also follows that the larger the number the greater horsepower is required to turn it.
With a load which is “normal”, or usual for your boating activities, the engine should be able to
reach its maximum operating RPM range at wide open throttle (WOT) and full trim. With a light
load on smooth water, the engine should reach its manufacturer’s rated maximum operating RPM
at wide-open throttle (WOT) and maximum trim. If it does not, you may have a propeller that has
too much pitch. If it goes beyond the maximum recommended RPM range, you may have too
little pitch. Neither condition is good for the engine. You will get shorter engine life and poorer
performance than your boat and motor were designed to provide.
If your boat came from the factory with a propeller selected by EdgeWater Power Boats
LLC and Yamaha® Engineering, it should already be optimized for the performance of
your boat. Before changing the pitch or diameter of your propeller, always check with your
dealer to determine how the changes will affect your boat and engine performance. Certain
modifications such as bottom paint or options that affect weight balance and/or wind resistance
may lower peak rpm. Always check with your dealer first if optimum rpm cannot be attained.

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3.4 Engine Power Tilt and Trim
The power tilt and trim system on your outboard(s) provides the ability to optimize the running
angle of your EdgeWater 388CC to allow for load and sea conditions. Moving the outboard lower
unit toward the transom is generally referred to as trimming “in”, while moving the outboard lower
unit away from the transom is referred to trimming “out”. It is generally best to have the engine(s)
trimmed in for acceleration from displacement to planning mode. This brings the bow down and
requires less fuel and effort on the engine’s part to plane off the hull. Once on plane, the engine
should be trimmed “out” to optimize performance and minimize fuel consumption.
The first 20° of movement aft of the transom are referred to as trim and is the area generally
used to operate the boat while on plane. The area beyond the first 20° is referred to as tilt and is
usually reserved for operating in shallow water or at idle speeds only.
While running under normal conditions, the bow should be in a 3°to 5° up angle to maximize the
hull’s ride and performance. When sea conditions are rougher than normal, bringing the bow
slightly down may improve the ride and will also allow the boat to remain on plane at a lower
speed.
Inspect hoses and cables at the engine before each use. Any worn or cracked components
should be replaced immediately.
3.5 Engine Instrumentation
The following is presented to familiarize you with the instruments, which may be on your boat.
Every boat is not equipped with full instrumentation.
All factory installed Yamaha® engines include Yamaha’s digital multifunction tachometer
and speedometer. Refer to your engine operators’ manual for use details.
Tachometer
The tachometer displays the number of revolutions per minute (RPM) the engine is turning.
There is a designed operation RPM range for the engine. Become familiar with the operating
range of your engine and its operating characteristics. The tachometer is designed to aid the
boater to assure the engine performs within that designed range. The tachometer can be used to
better understand the performance of your engines and your EdgeWater 388CC. By monitoring
your tachometer as you operate your EdgeWater 388CC, you will find RPM ranges that work
better in certain sea and load conditions. Be alert the tachometer operation may provide an early
indication of difficulty, before it becomes irreversible.
Speedometer
The speedometer indicates the boat speed in miles per hour. Some types work using a
spinning wheel to determine the boat speed. Their accuracy can vary from the actual over the
bottom speed due to many factors. Other boat speedometers calculate the speed by amount of
pressure the moving water forces into a “pitot” tube. And some other speedometers use a GPS
sensor. These gauges should only be used as indicators of approximate speed and not used as
absolute speed indicators. NOTE: The Yamaha® F250 engines use a pitot tube built into the
lower unit while the F300 and F350 engines require a GPS input for speed. In the event that
erroneous speed-readings appear, it is likely caused by debris clogging the pitot tube. Consult
with your dealer on methods to clean the tube and restore normal operation.

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Temperature Gauge
This is designed to monitor the operating temperature of your engine’s cooling system. A
sudden rise from the normal should be investigated to determine if there is an obstruction in the
cooling system.
Water Pressure Gauge
This gauge measures pressure in the engine cooling system. If the pressure changes from the
norm it could indicate a complete or partial blockage in the system or a water pump problem. If
this does not return to normal, your dealer should check it to make sure the cooling system is
operating properly. Low water pressure may also be caused by engines mounted excessively high
or tow in misadjustments of the tie bar. NOTE: Factory rigged boats are not equipped with water
pressure gauges.
Fuel Gauge
This gauge indicates the amount of fuel in the fuel tank. It is always prudent to follow the “rule
of thirds”, one-third of the tank to get the destination, one-third to return, and one-third in reserve.
NOTE: It is important to “calibrate” your fuel gauge during your first initial boat trip. Record the
fuel reading prior to fill up and how may gallons to top off the tank at each fill-up. Make sure the
boat is floating in the same position. By subtracting the amount to top off from total fuel capacity
you can calculate gallons remaining in the tank for 3/4, 1/2, and 1/4 gauge readings.
This gauge is a measure of relative fuel supply and is not a calibrated instrument!
Voltmeter
This meter displays the voltage for the battery and charging system. The voltmeter should read
at least 12.1 volts when the engines are off and 13.4 volts when the engines are running.
Hour Meter
The hour meter keeps a record of operating time and is very useful for scheduling maintenance.
Engine Alarms
Most outboards are equipped with several audible engine alarms. Your engine owner’s manual
will familiarize you with these and their sometimes-distinctive sounds.
Warning: If an engine alarm sounds, shut down the engine until the source of the problem is
determined.
Compass
The compass assists in determining your location by indicating your position relative to
magnetic north. For accuracy, your compass may need to be adjusted to take into account
specifics of your boat and geographic location. Please refer to the material provided with your
compass for “compensation”.

Instrument Maintenance
Your instrument faces should be periodically cleaned to keep them free of salt and atmospheric
debris. The ignition switches should be periodically sprayed with a contact cleaner/lubricant to
keep them free of corrosion and dirt. Cleaners with abrasives or harsh chemicals should not be
used on your instruments.
4/Fuel System
4.1 General
Your EdgeWater 388CC is equipped with a 450-gallon “main” fuel tank. The inspection ports for
the fuel tanks are located in the floor at the helm station for the main tank and between the aft
fishbox lids for the auxiliary tank. If equipped with the auxiliary tank, electronic switching valves
are located in the aft bilge compartment and are controlled by a dash-mounted switch. All engines
draw from either the main or auxiliary tank simultaneously and the fuel level gauge will display the
level of the tank selected. In the event of a malfunction of the valves, they may be switched
manually. Follow the instructions on the fuel valve to perform this operation.
Your boat’s fuel system has been designed to meet or exceed the requirements of the U.S.
Coast Guard, the National Marine Manufacturers Association (NMMA), and the American Boat
and Yacht Council (ABYC), which were in effect at the date of manufacture. All fuel system
components on your EdgeWater 388CC have been tested at the factory for function and leaks,
regular inspection and maintenance are the responsibility of the owner. Make periodic inspections
to determine the system is still safe and free of leaks. Special care should be taken when
inspecting joints and connections to ensure they have not loosened due to vibration.
If any odor of gasoline is detected, immediately shut off all engines and electrical devices
until the source and condition of the odor has been determined and eliminated. Have a
fire extinguisher at the ready until the condition has been resolved.
4.2 Fuel Fill
The fuel fill caps are located on the port side and are labeled “GAS”. If two fuel tanks are
installed, the forward fill is the main tank and the aft fill is the auxiliary tank. Tighten the caps until
snug, but not so tight they cannot be removed at the next fuel stop or so tight the rubber o-ring is
damaged, as this will allow water to enter the system.
4.3 Fuel Vent
This vent is incorporated into the fuel fill cap. The vent allows air to escape from the tank as fuel
is being added. Make sure the fill and vent area is kept free from debris. The vent also allows for
expansion and contraction of the fuel in the tanks. DO NOT SMOKE OR INTRODUCE AN OPEN
FLAME NEAR THE FUEL CAPS!
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4.4 Fueling
Before fueling, you should follow these procedures:
Make sure the boat is securely moored and engines are turned off.
Make sure all switches are off and all cigarettes and open flames are extinguished.
Know the location of all fire extinguishers.
Remove the fuel fill cap.
Place the nozzle firm against the side of the opening to prevent static discharge
Begin fueling.
DO NOT OVERFILL.
Re-install the fuel cap.
Check the bilge area for fuel odors.
Warning: If fuel odors are detected, do not start the engines! Check to make certain there
are no leaks or system problems before starting the engines.
Warning: Do not fill the fuel tank while the engines are running. Do not allow smoking or
open flames within 50 ft. of the fueling area. Fuel is very flammable. To prevent damage to
the engines, use only fuels without harsh additives or alcohol. Refer to your engine
owner’s manual for specific fuel requirements.
4.5 Fuel System Maintenance
Regularly inspect the fuel system components. All lines, fittings, and bulbs should be flexible
and not corroded. If fittings or other components are found to have cracks, they should be
replaced at once. If you use your boat infrequently or do not use it for an extended period of time,
a fuel conditioner should be added to a full tank of fuel to prevent fuel deterioration and damage to
the fuel system.
4.6 Fuel Filters
Fuel filters are installed inside the mechanical access space on the starboard-side wall. These
are fuel/water separator type of filters and are designed to prevent water from entering your
engine. The fuel filter element is a spin-off type element. At a minimum, this element should be
replaced at the beginning of every boating season. Always carry a filter wrench and spare filter of
the type supplied on your boat.
5/Electrical Systems
5.1 General
Your EdgeWater 388CC operates on a 12volt DC system, similar to your automobile. The
batteries, (2 standard plus 1 per engine), are typically lead acid type and require similar
maintenance to your automobile’s battery. A standard battery isolator and all batteries are located
inside the console, behind the access door located on the aft wall of the console.

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5.2 Panel Switches
Your EdgeWater 388CC is equipped with panel mounted breakers. Two panels are at the helm
area and one is inside the console. On the 388CC helms’ main switch panel, switches are
provided for navigation lights, decklights, forward, aft, and sump bilge pumps, two for livewells,
raw and freshwater pumps, fwd and aft fishwell pumpouts, fwd and aft spreader lights for t- or
hard tops, helm, deck, & locker lights, waste discharge, and four accessory switches. A second
panel mounted below the main switch panel includes two or three ignition switches, engine
emergency stop switch, two 12V outlets, battery parallel switch, and windlass power and up/down
switches.
Inside the console, the Master Distribution Panel houses the boats’ battery switches along with
breakers for the “switched” & “un-switched” component mains, electronics main, and anchor
windlass main. Breakers are provided for the following “switched” components: waste & fishwell
pump-outs, anchor windlass, forward, aft, and sump bilges, nav/helm/deck/locker lights, raw &
freshwater pumps, livewells, 12V outlets, trim tabs, electric head, stereo, spreader lights, four
accessories, and four spares. Breakers for “un-switched” components include: forward & aft auto
bilge pumps, stereo memory, and two spares. Breakers for electronics include radar, GPS,
sounder, VHF, autopilot, displays #1 & 2, one accessory, and eight spares.
A wiring diagram is included with this manual to assist you in troubleshooting the boat’s
electrical system. Please note that the accessory circuits are each protected by a circuit breaker.
Check that the requirement of any device you install does not exceed the rating of the circuit
breaker.
Your 388CC is equipped with two GRP29 batteries as standard, designated “HOUSE”, along
with “PORT ENGINE”, “STBD ENGINE”, and “CENTER ENGINE” if equipped. All batteries are
connected to a battery isolator through their battery switches. The isolator serves to provide
charging to all batteries simultaneously from the engines whenever they are running and to isolate
each battery from the other when the engines are turned off. This allows the use of your electrical
system at the dock or with the engines off without draining the engine cranking batteries. For
normal operation, all battery switches should be placed in the “ON” position and returned to the
“OFF” position when the boat is left unattended. Power is supplied to the automatic bilge pump
float switches and the electronics memory circuits even when the switches are in the off position.
In the event the battery level is too low to start an engine, the emergency parallel switch at the
helm may be pressed, and held down, while starting the engines. This connects all the batteries
together to provide increased starting power.
5.3 Electrical System Maintenance
At the beginning and end of each season the exposed electrical components of the switch panel
should be sprayed with a non-conductive rust/corrosion inhibiting spray. Light bulb connections
and running light connections should be covered with a non-water soluble lubricant. Care must
be taken not to get grease on the glass portion of the light’s as it will cause them to overheat and
burn out. Inspect all wiring for breaks, loose terminals and sound insulation. Replace worn or
deteriorated components. Check the electrolyte level in the batteries regularly and fill with distilled
water, as necessary. DO NOT OVERFILL. Batteries under charge emit explosive hydrogen gas.
DO NOT remove fill caps for inspection in the presence of sparks or an open flame.

15
6/Raw, Waste & Freshwater Systems
6.1 General
Your boat is equipped with fresh, waste, and raw water systems. The freshwater components
include a freshwater tank, distribution lines, two sink/shower faucets, and a pump. The standard raw
water system consists of a two high-speed pick-ups located on the transom, three pumps, two
washdown outlets, distribution lines, and one or more livewells. The waste system consists of a toilet,
waste management system, distribution lines, a deck plate, and an overboard discharge valve. A
diagram of all the water systems is included with this manual.
6.2 Livewell Operation
Two low maintenance centrifugal pumps located in the mechanical access space fill the
livewell(s). The main livewell is located at the center aft deck area, and an optional livewell may
be added in place of the freshwater sink area at the port aft corner of the deck. The livewell &
accessory livewell switches on the helm switch panel operate the pumps. In order to properly
operate, the valves located inside the livewell(s) must be adjusted to provide an even flow in and
out of the livewell(s). Too much flow and it will be more than the drains can handle, too little and
the water will not get proper circulation. The valve should be turned counterclockwise to open and
clockwise to close.
The livewell located at the aft center of the boat has 2 strainers attached to overboard drains in
order to regulate the height of the water. The livewell drains through hoses connected to thru hull
fittings on the sides of the boat. To completely drain the aft livewell(s) remove the bottom plug(s),
which allows any water to drain overboard.
6.3 High Pressure Washdown
The washdown system is comprised of a pump mounted in the mechanical access space and
two washdown outlets. The raw water switch on the helm switch panel controls the pump. A
washdown hose bib is located amidships under the starboard gunnel and a washdown hose and
nozzle assembly is located inside the forward anchor locker. These outlets can be used to wash
debris from the boat. The raw water switch should be turned on immediately prior to use and
turned off when not in use. When activated, the pump’s pressure switch will automatically control
the pump. It is normal for the pump to cycle on and off in response to flow rates and water
demand.
Always turn off the high-pressure washdown pump switch when leaving the boat
unattended.
6.4 Freshwater System
The freshwater system is comprised of a pump mounted beside the freshwater tank and two
showerhead assemblies. The freshwater switch on the helm switch panel controls the pump. A
thirty-one gallon freshwater tank is located forward of the console and is accessed by removing
the console storage drawer unit located on the lower forward wall. The fill is located on the
starboard side deck amidships. One showerhead assembly is located in the port aft sink on the
deck; (unless an optional livewell is installed), and the other is inside the console at the sink. The
freshwater switch should be turned on immediately prior to use and turned off when not in use.

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When activated, the pump’s pressure switch will automatically control the pump. It is normal for
the pump to cycle on and off in response to flow rates and water demand.
Always turn off the freshwater pump switch when leaving the boat unattended.
Operating instructions for the freshwater system
1. Fill holding tank with drinkable water, using water fill located on the starboard side
gunwale.
2. Turn on freshwater pump switch, located on the dash switch panel.
3. Utilize all freshwater equipment. (Transom shower STD)
4. If the system has not been used for a while please allow a few minutes for the pump
to prime up. (In some cases it may take up to ten minutes to prime the system.)
Troubleshooting tips
1. You can hear the pump running, but no water is coming out of the spray head.
a. The holding tank is empty, fill with water.
b. The pump has not yet primed, hold hand over nozzle while squeezing the
trigger. This will help to prime the pump.
2. The pump will not run at all.
a. Check the breaker on the dash switch panel.
b. Make sure the battery switches are in the “ON” position.
c. Check the connections at the switch and at the pump itself.
6.5 Waste System
The waste system is comprised of a toilet and a self-contained waste unit, which has the tank,
pump and y-valve installed together and mounted in the space forward of the water tank, behind
the console storage drawer unit located on the lower forward wall. A water solenoid is also
installed above the water tank for toilet pressure regulation. The waste discharge switch on the
helm switch panel controls the unit. The system can be emptied through a deck plate located on
the starboard side deck amidships or by opening the overboard discharge valve located behind
the access doors at the rear of the console interior. The waste discharge switch should be turned
on immediately prior to use and turned off when not in use. When activated, the pump’s pressure
switch will automatically control the unit. Please refer to your toilet and waste systems owners’
manuals for further operational procedures on the units.
Always turn off the waste discharge switch when leaving the boat unattended.
6.6 Raw Water System Maintenance
The following checks should be made periodically to assure your system operates properly:
Periodically spray pumps with a protective silicone solvent to reduce corrosion.
In-line filters should be cleaned periodically to remove any collected debris.
Fishboxes and livewells should be drained and cleaned after each use.
Hoses and connections should be checked periodically for signs of deterioration.

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7/Drainage System
7.1 General
All non-bilge water drains from your EdgeWater 388CC by gravity. Your boat is self-bailing at
rest and it is important to check all drains frequently to make sure they are clear and free flowing.
Review the schematic in the Appendix and become familiar with the location of each thru-hull
drain.
7.2 Cockpit Drains
Your EdgeWater 388CC drains through four cockpit drains located at the aft deck area. The
deck is designed to take water and drain it overboard. When washing the boat down after use,
use a hose nozzle with a high-pressure stream to make sure the drain troughs are clear of debris
and free running.
7.3 Transom Bilge
Your EdgeWater 388CC’s transom bilge is located in the mechanical access space. The aft
bilge pump is designed with an electronic sensor that automatically turns the pump on if the water
in the bilge rises, or the aft bilge switch on the helm switch panel may also activate it. This pump
should be periodically checked to make sure it is working properly and that the drain screen is
clear. To check the pump, squeeze the pump sides and lift it from the base, which is fastened to
the hull. The screen will be easily seen and if there is debris, it may be cleaned and replaced.
Replace the pump assembly and check its operation by turning on the momentary switch on the
helm switch panel. When the boat is out of the water, unscrewing the garboard plugs located at
the bottom of the transom and forward “step” areas drain any excess water that may intrude. The
plugs may be removed with a ½” wrench. The plugs should be periodically checked for tightness.
Note: The bilge sump area should be checked for oil before operating the bilge pump. The
discharge of oil from a bilge area is illegal and is subject to a fine. The Federal Water
Pollution Control Act prohibits the discharge of oil or oily waste into or upon the navigable
waters of the United States or the waters of the contiguous zone if such discharge causes a film or
sheen upon, or a discoloration of the surface of the water, or causes a sludge or emulsion beneath
the surface of the water. Violators are subject to a penalty of $10,000.
7.4 Locker & Fishbox Drains
On the 388CC there is a forward anchor locker that drains directly through the hull. The forward
and aft fishboxes are drained to diaphragm pumps that are controlled by the fishbox pumpout
switches on the helm switch panel. An overboard discharge valve is located in the midship bilge,
(interior console aft wall), for the forward fishbox. Access to the aft pumps is through the
mechanical access hatch located on the aft deck floor, and access to the forward pump is behind
the console storage drawer unit on the lower forward wall. A diagram of the raw water system is
included in the Appendix.
7.5 Amidships Bilge & Console Sump
Your EdgeWater 388CC has a midship bilge where an automatic pump and two overboard
discharge valves (holding tank and fishbox drain) are located, along with a console sump. The
forward bilge switch on the helm switch panel also controls the sump. Access to the bilge and
valves is through an access door located on the lower aft wall inside the console. This pump

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should be periodically checked to make sure it is working properly and that the drain screen is
clear. To check the pump, remove the top cover and lift it from the base, which is fastened to the
hull. The screen will be easily seen and if there is debris, it may be cleaned and replaced.
Replace the top cover and check its operation by pouring water into the console drain. Once the
water level is high enough, the pump will automatically turn on and drain the sump.
8/Safety Equipment
8.1 Required Safety Equipment
Contact the U.S. Coast Guard Boating Safety Hotline at 1-800-368-5647, or 1-202-267-1070 to
obtain a pamphlet on the latest required and suggested safety equipment. The Coast Guard
Auxiliary also offers “Courtesy Examinations” to help ensure your boat is properly equipped.
The following is a list of required safety equipment to be aboard your boat. This may be
modified from time to time and it is suggested that you contact the U.S. Coast Guard Boating
Safety Hotline at 800-368-5647 or pick up a copy of the latest “Federal Requirements and Safety
Tips of Recreational Boats” pamphlet.
Personal Floatation Devices (PFD’s)
These must bear a tag that they have been approved by the U.S. Coast Guard and must be in
serviceable condition. They must also be of the appropriate size for the wearer, i.e. for children
there must be children’s life vests on board. Many states now require children to wear PFD’s at all
times. You should check with your state to determine the proper requirements. You should
maintain at least one Type I, II, or III PFD for each person on board, plus one throwable device, a
ring or boat cushion, Type IV.
Visual Distress Signals
These are now required in virtually all waters of the United States. If in doubt, please check with
the U.S. Coast Guard Boating Safety Hotline at 1-800-368-5647 for a specific answer.
Pyrotechnic Visual Distress Signals
These must be U.S. Coast Guard approved, be in a serviceable condition, and be readily
accessible. They each have a service life date and are not counted beyond this date. These types
include both hand held flares and aerial flares.
Sound Signaling Device
You must have an efficient means of making a proper sound signal in the event of distress or
poor visibility. Your 388CC is equipped with a horn as standard equipment, but a good back up
such as a bell, whistle, or hand-held horn should also be carried.
Navigation Lights
These come with your EdgeWater 388CC and meet U.S. Coast Guard requirements. It is
important that you periodically check to make sure they are in working order. It is very important
these be checked prior to any cruise that will keep you on the water after dark.
Fire Extinguisher
Fire extinguishers are standard on all EdgeWater boats. These require regular inspection to
make certain they are ready for use. Questions may be directed to the U.S. Coast Guard Boating
Safety Hotline at 1-800-368-5647, or 1-202-267-1070. You should, as part of routine boat
maintenance; check to make sure your extinguisher is still operable.

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Never discharge your fire extinguisher to see if it still works. This will cause it to lose
pressure. If it is accidentally discharged or if it is used on a fire, replace it immediately.
8.2 Suggested Safety Equipment - Inshore
Suggested safety equipment, over and above the required equipment is:
First aid kit and manual
Boat hook
Tool kit
An adequate number and size of line should be on the boat. Bowlines should be at least 1/3
longer than the boat’s length and stern lines at least as long as the boat. When operating in areas
with unusually high tidal range, this should be lengthened. The minimum size line for a small boat
is 3/8” diameter 3-strand nylon. Refer to one of the listed references in the Appendix for a
complete discussion on line size relative to boat length.
Waterproof flashlight, with good batteries
Spare batteries
Binoculars
Tow line. This should be a minimum of 50’ long with at least one size increase over the boat’s
mooring lines.
Day/Night visual distress signals
Local charts and compass
Properly sized anchor and line
Fenders of the proper size
Always carry water, even for a 10-minute cruise.
8.3 Suggested Safety Equipment – Offshore
In addition to the required equipment, and the suggested inshore equipment, there is additional
equipment that is prudent to have when venturing offshore. No matter what the conditions at the
start of the trip, the situation can change rapidly and all your equipment and skill can be required
to safely bring your crew home to safety.
VHF radio
A supplemental, portable VHF is also a good backup
Sunscreen
Spare propeller and the knowledge of how to properly change it, if required
Extra clothing for changeable weather conditions
Spare anchor with sufficient line for the water depth
Mirror
Charts