Hydro-Force Hydro-Well III User manual

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1609-8636
HYDRO-WELL III
100 GALLON FRESH WATER TANK
Hydro-Force Manufacturing
4282 South 590 West
Salt Lake City, UT 84123
801-268-2673
801-268-3856 FAX
Revised: 01/09/2020
LMANAX139

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Congratulations on your purchase of the Hydro-Well III 100 gallon water tank.
Years of experience, engineering, and planning have gone into the design and manufacturing
of the Hydro-Well III. We take a great deal of pride in the Hydro-Well III; our goal is no less
than your complete satisfaction.
This manual will provide users with the knowledge to properly install the Hydro-Well III.
Any questions pertaining to the operating or servicing of this unit should be directed to your
nearest Hydro-Force distributor.
This manual is written specifically for the Hydro-Well III manufactured by:
Hydro-Force Manufacturing
4282 South 590 West
Salt Lake City, UT 84123
801-268-2673
801-268-3856 FAX
Information in this manual is subject to change without notice and does not represent a
commitment on the part of Hydro-Force, its parent or affiliated companies.
CAUTION:
While the Hydro-Well III is designed for use with cold water, hot water from
residential or commercial building water heaters may be safely used if the incoming
water temperature is below 150ºF or 65ºC.
However, if you are using hot water, make sure the water temperature in the tank does
not exceed the temperature rating of your pump. Check with the pump manufacturer
or your distributor for information on the temperature rating of your pump.
Heated by-pass water from a truck mounted cleaner must not be circulated back to
the Hydro-Well III.
High incoming water supply pressure may flow through closed Float Valve. Observe tank
during filling and turn off water as soon as tank is full. In some areas an inline pressure
regulator may be required to prevent the Hydro-Well III from overflowing.
The Hydro-Well III should only be filled while the vehicle is parked on a level area.
Filling the tank while parked on an incline may prevent the Water Control Valve or
overflow ports from operating properly. This can cause the tank to overflow inside the
van or over-pressurize and damage the tank.
INTRODUCTION

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Model 1609-8636 Hydro-Well III:
Width: 61 inches
Depth: 22 inches
Height: 42 inches
Weight (Empty): approximately 115lbs.
Tank Construction: LLDPE
Water Capacity: 100 gallons
The vehicle must have a cargo capacity to handle the weight of the Hydro-Well III as well as the
weight of more than 100 gallons of water. A Hydro-Well III, when full of water, can weight more
than 1000lbs. For this reason we recommend that the Hydro-Well III only be installed in full size
3/4 ton or 1 ton vans or trucks.
The Hydro-Well III is designed to be mounted almost anywhere in the vehicle. It can be mounted
against the wall on either side, over the wheel well or mounted away from the wall across the
middle of the van.
The Hydro Well III can be mounted directly to the van floor. Depending on the placement of the
floor mount brackets in relation to the van floor ribs, some shimming may be required to keep the
brackets flat when bolting the tank directly to the van floor.
The felt padding on the back of the vehicles factory floor mat can absorb & hold water causing
accelerated rusting of the van floor and allowing growth of mold and mildew. The removal of the
felt backing before installing the Hydro-Well III is recommended.
The most stable installations are achieved when the Hydro-Well III is installed on top of a flat
smooth floor. This can be accomplished by installing a floor made of 1/2” or 3/4” exterior grade
or marine grade plywood in the van. The factory floor mat (with padding removed) can be re-
installed on top of the plywood floor or indoor/outdoor carpeting can be installed on top of the
floor if desired.
Position the tank to leave adequate clearance to properly mount the tank and so the tank does not
restrict access to other equipment. Be sure to maintain safe distances between the tank and any
moving parts and heat sources which could damage the tank.
When selecting the tank mounting location, set the tank in place and check under the van for
obstructions which can make it difficult or impossible to drill holes, place bolt & secure the nuts to
hold the tank in place securely. Move the tank as needed to assure that you will be able to properly
secure the tank.
SPECIFICATIONS
Vehicle Requirements & Preparation

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WATER INLET FITTING - The Hydro-Well III gives you the option of mounting the
water inlet fitting on the top of the tank on either the right or left side of the tank. Choose the
location on the top right or top left side of the tank that best suits your layout and to install the
Float Valve Assembly inside the tank.
Apply Teflon Tape to the threads on both ends of the 1/2” x 4” SS Nipple (NM5825). Attach the
1/2” F-F 90º Elbow (BR296) to one end of the 1/2” x 4” SS nipple.
Reach inside the tank and thread the other end of the nipple into the 1/2” female pipe thread end
of the bulkhead fitting on the top of the tank. Tighten the nipple so it will not leak, and turn the
nipple so the elbow points toward the back of the tank. (Do not over-tighten nipple. bulkhead
fitting can be damaged if over-tightened.)
Apply thread sealant to the male threads on the Float Valve (PBL23025).
(Do not attach Float Arm and Float ball until after Valve is installed.)
Thread the Float Valve into the 1/2” F-F 90º Elbow. Tighten the Float Valve so it will not leak,
and turn the valve so the outlet port is pointing down.
Attach the Float Arm & Float Ball Assembly to the Float Valve. Adjust Position of Float Arm to
shut off flow before water level reaches the Tank Vent/Overflow port on the side of the tank.
Apply thread sealant to the male threads on the 1/2” M-F Elbow (BR286). Thread the elbow into
the 1/2” female pipe thread on the bulkhead fitting on the outside of the molded in fitting on top
of the tank where you just installed the Float Valve Assembly. (Do not over-tighten elbow.
Bulkhead fitting can be damaged if over-tightened. This damage will not be covered under the
product warranty)
You can now connect the appropriate inlet fitting to connect to your water supply hose, such as a
garden hose fitting or quick connect. (Quick connects or other hose connection fittings are not
included with the Hydro-Well III.)
Apply thread sealant to one of the PVC 1/2” Hex Plugs (BR226P). Thread the plug into the
unused water inlet port on the other side of the tank.
Tank Preparation
Water Inlet Port –Right Side
½” Hex Plug PVC – BR226P

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WATER OUTLET FITTING - The Hydro-Well III gives you the option of mounting
the water outlet fitting on the bottom back of the tank toward the right or left side of the tank.
Choose the location that best suits your layout and to install the water outlet fittings on the bottom
of the tank.
Apply thread sealant to the male threads on the second 1/2” M-F Elbow (BR286). Thread the
elbow into the 1/2” bulkhead fitting on the outside of the tank on the bottom port you have
selected as your water outlet. Tighten the elbow and align the open end of the elbow in the
direction you will be running your water outlet hose. (Do not over-tighten nipple. Bulkhead fitting
may be damaged and leak if fittings are over-tightened. This damage will not be covered under the
product warranty)
Apply thread sealant to the 1/2” pipe threads on the 3/4” Hose Barb (BR044). Thread the barb
into the elbow. Tighten enough so it will not leak, but do not over-tighten.
Apply thread sealant to one of the PVC 1/2” Hex Plugs (BR226P). Thread the plug into the
unused water outlet port on the other side of the tank.
If desired another elbow and a ball valve can be installed in the unused water outlet port as a tank
drain. It is a good idea to put a male garden hose fitting on the drain to allow you to connect a
garden hose when draining the tank. A cap should be put on the outlet side of the ball valve to
prevent leaking if the valve is accidentally opened. Drain valve and fittings are not included with
the Hydro-Well III.
BACK VIEW OF TANK
Water Outlet Port –Right Side
Water Outlet Port –Left Side

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TANK VENT & OVERFLOW FITTING - The Hydro-Well III gives you the option
of mounting the water overflow fitting on the right side, left side or both sides of the tank.
Choose the location that best suits your layout and to install the overflow fittings on the side of the
tank. Drill a 1” hole through the flow to allow the 3/4” ID overflow hose to extend though the
floor and under the van to prevent the overflow water from draining into the van.
Tank overflow fittings, consisting of one 1/2” M-F Elbow (BR286) and one 3/4” Hose Barb x
1/2” MPT (BR044), are included with the Hydro-Well III.
Tank Vent & Overflow Fittings must be installed to protect tank from damage
due to overfilling or over-pressurizing. Failure to install the Tank Vent &
Overflow Fittings will void the Hydro-Well III warranty.
Only fill the Hydro-Well III while vehicle is parked on a level surface.
Pressure regulator must be used on hose when filling tank.
There are two Overflow Ports one on each side of the tank. The use of one overflow assembly is
required. The other Vent/Overflow port can be blocked with the PVC 1/2” Hex Plug (BR226P)
included with the Hydro-Well III.
The ¾” ID hose & hose clamp are not included with the Hydro-Well III.
Overflow Port –Right Side
1/2” 90° Elbow M-F –BR286
3/4” Barb x 1/2” MPT – BR044
3/4” ID Hose*
Hose Clamp*
*Hose & Clamp –Not included with
Hydro-Well III

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CAUTION: Before drilling through floor, always check under the vehicle
to locate beams and vehicle components such as the gas tank, fuel lines,
wiring harnesses, heat shields, spare tire, etc. Position the Hydro-Well III so
all required holes can be drilled through floor without damaging vehicle
components and bolts are positioned with room to attach mounting plates,
washers and nuts for safe and secure mounting.
Keep proper clearances from moving parts or hot surfaces. Leave access room for
servicing other equipment as required.
To ease assembly it is recommended that you connect outlet water fittings as outlined in
previous section before mounting tank.
1. Position the tank and mark the location of the holes to be drilled.
For proper installation two bolts must be used to secure each of the two floor brackets to
the floor (One bracket on each end of the tank). All three hold-down rods (Two on the
front & one on the back) must also be installed. The floor brackets have four holes
available to allow some flexibility in bolt placement. For the most stable mounting use the
two outside holes. The farther apart the bolts are, the more stable the bracket will be. There
is also a little flexibility in the placement on the hold-down rods. The hold-down brackets
can be slid from side to side to move the location as needed to avoid obstructions under
the van. Keep hold-down rods perpendicular to van floor.
2.
Tank Installation
For the most stable mount,
use the two outside bolt holes
Move bolts to other holes
only if needed to avoid
obstacles under van floor.
For the most stable mounting keep the hold–down brackets centered in the original
mounting areas and keep the hold-down rods perpendicular to the floor.
Move hold-down rod assemblies only as needed to avoid obstacles under van floor.
Water Inlet Port –Right Side

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2. Once you have checked for obstacles under the vehicle & determined the correct hole
positions, drill 3/8” holes for each bolt & hold down rod. Use a drill bit depth stop or shield
if needed to prevent going through too far and damaging vehicle components.
3. Thread 3/8” jam nut ⑥onto hold-down rod ⑤to proper depth
to go through van floor or wheel well; about 1-3 inches.
4. Thread 3/8” coupler ④onto the top of the hold-down rod. Place
3/8” tap bolt ③through hole in hold down bracket ②and
thread bolt into coupler.
5. Place 3/8” fender washer ⑦on rod & push rod through hole.
Hook the bracket over the edge of the tank and tighten the tap
bolt and move the jam nut as needed to adjust the height of the
hold-down assembly. Leave extra threads open between the tap
bolt and coupler and coupler and rod for later adjustments if
needed. Adjust rod height to secure the bracket to the tank
such the bracket and tank will not move, but not too tight.
Over-tightening the hold down rod may damage the tank.
(If you had to move front hold down over to shelf area to avoid
obstacles you will need to shorten hold-down rod.)
6. Under the van, place back-up plate ⑬on rod and secure to floor
using the 3/8” lock washer ⑩and 3/8” nut ⑭tightened against
jam nut on top of floor. Re-adjust the 3/8” coupler as needed to
maintain proper rod tension.
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7. Place a 3/8” flat washer ⑪on each of the four 3/8” tap bolts ③and insert the bolts
through holes in floor bracket ⑧. Two bolts & washers on each floor bracket on each end
of the tank.
8. Under the van, place back-up plate ⑬on each bolt and secure to floor using the 3/8” lock
washer ⑩and 3/8” nut ⑭.
9. Connect inlet water fittings, water supply pump, overflow fittings, outlet water
fittings and hoses as needed.
10. Fill tank 1/3 full of water and check hold down rods and re-tighten as needed.
Check for leaks drain tank and reseal fittings as needed.
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AP36
AP38

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Inlet Parts: PAF01 3/8” MALE QUICK CONNECT BRASS
PAF02 3/8” FEMALE QUICK CONNECT BRASS
BR136 REDUCING HEX NIPPLE ½” X 3/8” BRASS
BR327 ADAPTER ¾” FGH X ½” FPT BRASS
BR076 NIPPLE ½” HEX BRASS
Outlet Parts: AH66 ¾” ID WATER HOSE – SOLD PER FOOT
PH09 –HOSE CLAMP
AP36 –45PSI 4.5 GPM DEMAND PUMP PRESSURE SYSTEM
AP38 –35PSI 3.7 GPM PUMP W/ Variable Speed Demand Control
PF01740-000 –INLINE FILTER WITH ¾” HOSE BARBS
PF20381-010 –ELBOW ¾” BARB FOR FLOJET QUAD PUMPS
PF20381-006 –STRAIGHT ¾” BARB FOR FLOJET QUAD PUMPS
AH60 –½” ID WATER HOSE – SOLD PER FOOT
PAF01 3/8” MALE QUICK CONNECT BRASS
PAF02 3/8” FEMALE QUICK CONNECT BRASS
BR030 –½” HOSE BAR X 3/8” MPT BRASS
BR284 –ELBOW 90 DEG 3/8” M-F STREET BRASS
Drain Parts: BR286 ELBOW 90 DEG ½” M-F STREET BRASS
BR030 –½” HOSE BAR X 3/8” MPT BRASS
BR136 REDUCING HEX NIPPLE ½” X 3/8” BRASS
AH51 BALL VALVE 3/8” FPT
BR320 ADAPTER ¾” MGH X 3/8” MPT BRASS
BR325 GARDEN HOSE CAP BRASS
BR600 GASKET GARDEN HOSE CAP
Optional Parts & Accessories