Dover HYDRO DM-500 User manual

user manual
DM-5OO
warewash dispenser

(This page was intentionally left blank.)

index
1.OO overview page
1.01 Package Contents 4
1.02 Operation 4
1.03 General Specifications 4
1.04 Model Numbers and Features 7
2.OO installation
2.01 Site Survey & Installation Requirements 6
2.02 Wall Mount 6
2.03 Mechanical Installation 7
2.04 Electrical Installation and Programming 8
2.05 Setting Dosing Parameters 8
3.OO operation
3.01 Description of Controls 10
4.OO service parts 11
5.OO maintenance
5.01 Maintenance (Required) 12
5.02 Pump Tube Replacement 12
6.OO troubleshooting
6.01 Troubleshooting Table 13
7.OO specifications
7.01 Specifications 13
8.OO warranty
8.01 Limited Warranty 14
8.02 Limitation of Liability 14

4
1.OO overview
1.O1 Package Contents
DM-500 Warewash Dispenser (part number varies by model)
• DM-500 Dispenser
(Part number varies by model)
• Quick Start Guide (P/N HYD10099668)
• Accessory Kit: Mounting hardware, injection fittings, and tubing
(Part number varies by model)
• Pump Squeeze Tubes (not installed)
Detergent pump uses Santoprene®tubes as standard
Rinse pump uses silicone tubes as standard
(Part numbers vary by model)
1.O2 Operation
The DM-500 is a globally versatile, dual product dispenser used to supply detergents and rinse aid into automatic dish
machines. Designed with simplicity in mind, the unit can be installed in minutes and requires no programming; all settings
can be configured using potentiometers that control the time or speed of dosing (depending on the model). The unit has the
reliability and accuracy you expect from Hydro Systems Co. at an economic price point.
NOTE! The DM-500 is intended for use in industrial applications. It is not suitable for domestic use, and it must not be used
outside of its intended use. The product must only be used for commercial dish washing operations. The manufacturer waives
any responsibility arising from incorrect usage or transportation.
1.O3 General Specifications
Category Specification
Electrical 90 to 260 VAC at 50/60Hz
Chemical Temperature Rating Intake chemicals should be at room temperature
Regulatory Approvals (CE) 89/336/CEE Regarding “Electromagnetic Compatibility” and the subsequent modifications
to 92/31/CEE, 93/68/CEE, 93/97/CEE
73/23/CEE Regarding “Low Voltages”, and the subsequent modifications to 93/68/CEE,
2002/95/CE, 2002/96/CE, 2003/108/CE “RoHs and WEEE Directive”
Regulatory Approvals (UL / CSA) UL 778:ed6-2016
CSA C22.2 No.108:14
Standard for Motor-Operated Water Pumps
Liquid Pumps
Cabinet Material Front: Polypropylene - Rear: Polypropylene
Environmental Pollution: Degree 2, Temperature: 50° to 104° F (10° to 40° C), Maximum Humidity: 95% Relative
Dimensions 9.2 in (235mm) High x 9.3 in (237mm) Wide x 5.4 in (137.5mm) Depth
Safety Precautions
WARNING! Please read precautions thoroughly before operation. Meet all applicable local codes and regulations.
THANK YOU FOR YOUR INTEREST IN OUR PRODUCTS
Please use this equipment carefully and observe all warnings and cautions.
WEAR protective clothing and eyewear when dispensing chemicals or other materials or when working in the
vicinity of all chemicals, filling or emptying equipment, or changing metering tips.
ALWAYS
observe safety and handling instructions of the chemical manufacturer.
direct discharge away from you or other persons or into approved containers.
dispense cleaners and chemicals in accordance with manufacturer’s instructions. Exercise CAUTION when
maintaining your equipment.
reassemble equipment according to instruction procedures. Be sure all components are firmly screwed or
latched into position.
KEEP equipment clean to maintain proper operation.
NOTE if the unit is used to fill a sink, or the discharge hose can be placed into a sink, the unit must mounted be so
the bottom of the cabinet is above the overflow rim of the sink.

5
1.OO overview (continued)
1.O4 Model Numbers and Features
Pump Build Options:
Adjustment: 2TV = 2 Adjustments: Time + Speed
Combos 2TT = 2 Adjustments: Time + Time
Flow Rates: 017 = 17 ml per minute
067 = 67 ml per minute
100 = 100 ml per minute
Pump Pressure: 1 = 1 bar (14.5 psi)
3 = 3 bar (43.5 psi)
Tube Material: SA = Santoprene®
SI = Silicone
Regulatory CE = CE
Approvals: UL = UL
Build Example: HYD DM500MP 2TV 100 1 SA 2TV 017 3 SI UL
Model Builder: Hydro
Prefix
Base
Model
Adjust.
Combo
Pump
Flow
Rate
Pump
Pressure
Tube
Matl.
Adjust.
Combo
Pump
Flow
Rate
Pump
Pressure
Tube
Matl.
Regulatory
& Electrical
Approvals
Detergent Pump Rinse Pump
Standard UL Model
HYDDM500MP
2TV1001SA2TV0173SIUL
HYD DM500MP
2TV 100 1 SA 2TV 017 3 SI UL
Standard CE Model
HYDDM500MP
2TV1001SA2TV0173SICE
HYD DM500MP
2TV 100 1 SA 2TV 017 3 SI CE
Installation Examples:
DR
Door Machine
Conveyor Machine DR

6
2.OO installation
2.O1 Site Survey & Installation Requirements
• Unit must not be installed near areas that suffer excess temperature changes, direct sunlight, frost or moisture of any kind.
• Area must be free of high levels of electrical noise.
• Ensure the unit can be mounted in an accessible position above the height of the required discharge location.
• Unit must be mounted on a suitable wall, that is flat and perpendicular to the floor.
• The unit location should be well lit for any maintenance and free of high levels of dust / air particulates.
• Scheduled maintenance should be carried out on the dispenser at least once per year.
2.O2 Wall Mount
1) Choose an installation location that is:
• Within 1.5m (4.5 ft.) of the product containers.
• At a reasonable height above the wash tank on the dish machine that allows for easy maintenance access.
• Away from any direct sources of steam, water spray, and high temperatures.
• Close enough to the dish machine electrical control panel to allow dispenser wiring without use of an external junction
box (not provided) wherever possible.
2) Use provided holes in the corners of the DM-500 cabinet as a drilling template in a suitable mounting location.
3) Wall anchors are provided, please ensure they are appropriate to the wall/surface being mounted to.
4) Attach the DM-500 directly to the mounting surface with the hardware provided.
WARNING! This product is intended to be installed by experienced installers, in accordance with all applicable
electrical and plumbing codes.
2.O3 Mechanical Installation
Installing the Rinse Injection Fitting
1) Install the rinse injection fitting to conform to local plumbing codes.
2) The injection fitting is designed to fit global needs. It should thread
directly into a 1/8” NPT (North America) or a BSP (Global) female
threaded connection. As an alternative to the threaded connection a
barb fitting adapter is also included.
3) If the machine’s rinse plumbing is thin-wall pipe, use a saddle clamp
with the 1/8” threaded hole.
4) If the machine already has a tapped hole to accommodate the fitting,
skip to Step 8
5) Choose a location for the rinse injection fitting that is downstream from
the vacuum breaker and at the proper height per local plumbing codes.
This point is either into the pressurized rinse line or upstream of the
booster heater for the rinse water..
6) To create the threaded connection at your selected location, drill a
9mm (11/32”) hole in the rinse plumbing at the injection location.
7) Tap the hole drilled in step 6 with a 1/8” tap (NPT or BSP depending on
the region)
8) Install the injection fitting. Use thread sealant to ensure a leak-free
assembly.
Rinse Injection
Fitting Threaded
Rinse Injection
Fitting Barbed
Chemical
Pickup
Tubing
Compression
Nut
Check Valve
& Injector
Threaded
Barb
Threaded
Fitting

7
2.OO installation (continued)
2.O3 Mechanical Installation (continued)
Installing the Detergent Injection Fitting
1) When choosing a mounting locating, make sure that the detergent
infection fitting will be:
• Above the water level of the filled wash tank.
• Discharging detergent directly into the wash tank and not on top of
any shelf areas or other obstacles that could prevent detergent from
falling directly into the wash tank.
2. Previously punched holes may be suitable but always confirm that the
fitting is correctly placed. 10mm (3/8’’) holes are common in Europe
and 22mm (7/8’’) holes are common in North America. If an appropriate
hole is present, go to step 4.
3. If a hole is not available already, drill a 10mm (3/8’’) hole at the center of
your chosen detergent injection location on the dish machine tank.
4. Remove the retaining nut from the supplied detergent injection fitting
and gather the gaskets and washers supplied with the unit.
5 a. For a 10mm (3/8’’) hole insert the detergent injection fitting, with a
rubber gasket, into the hole you drilled earlier.
b. For a 22mm (7/8’’) hole insert the detergent injection fitting, with a
large rubber gasket backed by a large stainless steel washer.
6. From the inside of the machine install a second rubber washer,
stainless backing washer if using a 22mm (7/8’’) hole, and the retaining
nut. Tighten finger-tight, then snug using a wrench.
90° (Right Angle)
Detergent Injection
Fitting
CAUTION! Do not over-tighten the plastic retaining nut.
Wash Tank
Wall
Retaining
Nut
Compression
Nut
Inner
Rubber
Gasket
Outer
Rubber
Gasket
Outer
Steel Washer
(UL Only)
Inner
Steel Washer
(UL Only)
InsideOutside
(CE model shown)
Installing the Rinse and Detergent Supply and Discharge Tubes
1) Install the included PVC pump supply tube (4mm ID, 6mm OD) into the chemical container using the foot filter with screen
and weight to position the tube at the bottom of the container.
2) Route the other end of the included PVC pump supply tubes from supply containers to the inlet sides (left) of each
respective pump. Slip the tube fully through the compression nut into fitting and tighten.
3) Route pump discharge tubes to the outlet sides (right) of each respective pump. Slip the tube fully through compression
nut into fitting and tighten.
4) Route the other end the pump discharge tube to the appropriate injection fitting (see the injection fitting installation
instructions on previous page for more detail). Slip the tube fully through the compression nut onto fitting nipple and
tighten.
NOTE: Try to keep both the supply and discharge hoses as straight as possible, avoiding all unnecessary bends.

8
2.OO installation (continued)
2.O4 Electrical Installation
Installing the Detergent and Rinse Supply Signal Wiring
NOTE: All electrical connections must either be in the dish machine control circuit panel or an external junction box. The
dispenser is pre-wired with a multi-conductor electrical cable that may need to be run through a conduit to the location where
hard-wired connections are made on the dish machine. If this is the case use approved water tight conduit that meets local
and national codes
All DM-500 models will have two pairs of signal/power wires that need to be connected to the dish machine.
Using the tables below, connect the signal wires to a compatible voltage source.
WARNING! Before performing any work on the DM-500, you must disconnect the power supply voltage of the dish
machine.
CAUTION! Verify that electrical grounding is functional and complies with local regulations. Verify that the rated values
of the pump are compatible with those of the power supply. Never install the pump directly in parallel with
inductive loads (e.g. motors/solenoid valves). If necessary, use an isolating relay.
Initial Charge Signal
Wire Color Circuit Voltage Function
Brown 90 to 260 VAC at 50/60Hz Connect to dish machine on/off switch; to trigger an initial charge upon power up.
Blue 90 to 260 VAC at 50/60Hz Connect to dish machine on/off switch; to trigger an initial charge upon power up.
Rinse Signal
Wire Color Circuit Voltage Function
Brown 90 to 260 VAC at 50/60Hz Connect to dish machine rinse solenoid; to trigger detergent and rinse aid dosing for each rack.
Blue 90 to 260 VAC at 50/60Hz Connect to dish machine rinse solenoid; to trigger detergent and rinse aid dosing for each rack.
2.O5 Setting Dosing Parameters
Each DM-500 unit has two pumps, one for detergent (left
side, facing the unit) and one for rinse (right side, facing the
unit) as shown.
Each pump has a priming button and under each pump cover
are potentiometers used to set the dosing time or speed.
In general, the detergent pumps utilize a Santoprene squeeze
tube and the rinse pump a Silicone squeeze tube.
The details for setting the Dosing parameters, for each of the
most popular models, is described on the following pages.
Signal wires should be routed through the appropriate conduit or cable gland in the bottom of the DM-500 to the signal
board shown below. The signal board can be accessed by removing the five Phillips head screws and lifting the front cover
to reveal the unit internals. The Initial Charge signal should be wired to the two screw terminals marked M1 Charge and the
Rinse signal to the two screw terminals marked M2 Rinse. Polarity of these connections does not matter.
Detergent
Pump
Detergent
Prime
Rinse
Pump
Conduit
Fitting
Rinse
Prime
UL Model Shown
Rinse Signal Connections
Initial Charge Signal Connections

9
2.OO installation (continued)
2.O5 Setting Dosing Parameters (continued)
Standard UL Model
HYDDM500MP2TV1001SA2TV0173SIUL
This model is primarily used in North America. The initial
charge and rinse signals are not pre-wired on this model and
must be routed through housing via the ½’’ female conduit
fitting in the base of the unit to comply with local regulations.
Detergent Pump
Connect the initial charge signal cable to the main power
supply for the dish machine. When the signal is activated
by powering the machine on, the pump will run for the
time programmed (0 to 240 seconds) on the upper left
potentiometer. After the initial charge has run, the signal
should remain on to continue powering the dispenser. To
dose another initial charge, the dish machine’s power must
be cycled.
To dispense a top-up dose of detergent during the rinse
cycle of each rack, connect the rinse signal cable to the
appropriate terminal in the dish machine or directly to the
rinse solenoid. When the signal is activated, the pump will
run at a programmable speed (0%-100%) using the right
potentiometer. The pump will run at this speed for the
duration that the signal is present. For this model, when
the detergent pump runs at max speed, the flow rate
specification is 3.4 oz/min (100 ml/min).
Rinse Pump
Similarly, the left potentiometer on the rinse pump will control
the run time during the initial charge.
In most applications, the operator will want to minimize
the rinse-aid dispensed during an initial charge, so the left
potentiometer should be turned fully counterclockwise.
When the rinse signal is activated, the pump will run at a
programmable speed (0%-100%) set by using the right
potentiometer. The pump will run at this speed for the
duration that the rinse signal is present.
For this model, when the rinse-aid pump runs at max speed,
the flow rate specification is 0.6 oz/min (17 ml/min).
Initial Charge
Potentiometer
0 to 240 seconds
Pump Speed
Potentiometer
0 to 100 percent
0 0
240s 100%
D2TV Initial Charge Time and Pump Speed
LED
Initial Charge
Potentiometer
0 to 240 seconds
Pump Speed
Potentiometer
0 to 100 percent
0 0
240s 100%
R2TV Initial Charge Time and Pump Speed
LED
Standard CE Model
HYDDM500MP2TV1001SA2TV0173SICE
This model is primarily used in Europe and Asia Pacific.
The initial charge and rinse signals are pre-wired on this
model, meaning the operator does not have to open the
housing to wire the initial charge and rinse signals to the
signal board.
Detergent
Pump
Detergent
Prime
Rinse
Pump
Pre-wired
Connection
Rinse
Prime
CE Model Shown

10
2.OO installation (continued)
2.O5 Setting Dosing Parameters (continued)
Standard CE Model (continued)
Detergent Pump
Connect the initial charge signal cable to the main power
supply for the dish machine. When the signal is activated
by powering the machine on, the pump will run for the
time programmed (0 to 240 seconds) on the upper left
potentiometer. After the initial charge has run, the signal
should remain on to continue powering the dispenser. To
dose another initial charge, the dish machine’s power must
be cycled.
To dispense a top-up dose of detergent during the rinse
cycle of each rack, connect the rinse signal cable to the
appropriate terminal in the dish machine or directly to the
rinse solenoid. When the signal is activated, the pump will
run at a programmable speed (0%-100%) using the right
potentiometer. The pump will run at this speed for the
duration that the signal is present. For this model, when
the detergent pump runs at max speed, the flow rate
specification is 3.4 oz/min (100 mL/min).
Rinse Pump
Similarly, the left potentiometer on the rinse pump will control
the run time during the initial charge.
In most applications, the operator will want to minimize
the rinse-aid dispensed during an initial charge, so the left
potentiometer should be turned fully counterclockwise.
When the rinse signal is activated, the pump will run at a
programmable speed (0%-100%) set by using the right
potentiometer. The pump will run at this speed for the
duration that the rinse signal is present.
For this model, when the rinse-aid pump runs at max speed,
the flow rate specification is 0.6 oz/min (17 ml/min).
Initial Charge
Potentiometer
0 to 240 seconds
Pump Speed
Potentiometer
0 to 100 percent
0 0
240s 100%
D2TV Initial Charge Time and Pump Speed
LED
Initial Charge
Potentiometer
0 to 240 seconds
Pump Speed
Potentiometer
0 to 100 percent
0 0
240s 100%
R2TV Initial Charge Time and Pump Speed
LED
3.OO operation
3.O1 Priming the Pumps
All DM-500 models have two prime buttons (one each for the Detergent and Rinse Aid pump) that can be used to prime
the inlet and outlet tubing. To use the prime buttons, however, the initial charge signal connected to the dish machine main
power must be active (e.g. the dispenser must have power). Additionally, the power/stand-by switch on the bottom of the
dispenser must be set to standby mode.
Power/Standby Switch Operation
Found on the bottom of pump body, the switch has 2
positions:
Switch to: The pump is active (ON). The pump runs normally.
Right If no signal is present, the pump’s LED will be off.
Switch to: The pump is in standby (OFF).
Left The pump’s LED will be flashing orange DM-500 Power / Standby Switch
Standby ON

11
LED Color Fixed or Flashing Indication
Green Fixed
You should not see the LED display as fixed green.
(If you see the LED display as fixed green please contact Product Support at Hydro Systems)
Flashing
The pump is running a top-up/rinse dose correctly.
The frequency of the flashing is proportional to speed of pump rotation.
Orange Fixed
The pump is powered ON but not dosing.
Flashing
The pump is switched into the STANDBY mode.
Red Fixed
The pump is in an alarm state or is jammed. Please contact Hydro Product Support.
Flashing
The pump is running an initial charge dose correctly or is priming when in standby mode.
The frequency of the flashing is proportional to speed of pump rotation.
3.OO operation (continued)
3.O2 LED Pump Status Indicators
All DM-500 models have two LED indicators (one each for the Detergent and Rinse Aid pump). The color and states for each
condition are described below.
4.OO service parts
Category Part No. Description
Replacement squeeze tubes with compression fittings (packs of 10).
HYD10099124 10-Pack Santoprene®
HYD10099125 10-Pack Silicone
Installation Kits
Pickup / discharge tubing, foot filter, weight, injection fittings, mounting bracket and hardware
HYD10099142 CE Detergent Install Kit
HYD10099143 CE Rinse Install Kit
HYD10099144 UL Detergent Install Kit
HYD10099145 UL Rinse Install Kit
DM-500
Squeeze Tube
Install Kit
(Typical)

12
5.OO maintenance
5.O1 Maintenance (Required}
The DM-500 is designed to require minimal setup and ongoing maintenance. The routine maintenance tasks include:
• Check the pump tube’s condition and replace as needed to maintain delivery performance
• Clean the unit cabinet with a damp cloth
• Check the foot strainer and clean it to remove any crystallized product or accumulated dirt.
• Ensure that there are no impurities in the suction and delivery tubes. These may damage the pump tube or cause
anomalies in the flow rate.
• Titrate the wash tank solution to verify that unit is holding accurate concentration.
5.O2 Pump Tube Replacement
Replace pump tubes at regular maintenance intervals, well before the tube fails and ruptures. If the tube does rupture, clean
all product from the pump housing with a damp cloth.
• Remove the pump front screw using a 7mm (5/16”) hex head driver and detach the pump cover.
• Take out the old tube with compression fittings. Start by rotating the rotor so that the rollers are oriented in an 12/6 o’clock
position.
• Starting on the left side, slide the plastic fitting out from the pump. Slowly rotate the pump rotor clockwise while pulling
the tube out from the pump race.
• Insert the new tube with compression fittings from left side of pump, with pump rollers oriented in an 12/6 o’clock position.
• Slide the compression fitting into place and route the tube vertically into the pump race.
• Slowly turn the spinner clockwise, as you position the pump tube into place.
• When finished reinstall the pump cover and front screw.
NOTE! When changing pump tubes, be sure to match the correct tube material to the pump.
Santoprene®tubes are standard for detergent pumps. Silicone tubes are used for rinse pumps.
Installing the
new tube.
Install compression
fitting, route tube up
While turning rotor
install tube in race
Attach front cover
and tighten screw
Removing the
old tube.
Remove the
front cover
Align rollers
at “12 and 6”
Rotate pump
while removing tube
Pump ready
for new tube

13
6.OO troubleshooting
6.O1 Troubleshooting Table
Problem Cause Solution
1. Dead unit - No LEDs illuminated a. No incoming main electrical power • Check wiring from dish machine.
• Check for power at dish machine connection.
b. Bad PC board • If board has failed, replace the DM-500 unit.
2. No chemical dispensing. a. No signal received • Check signal wiring to dish machine.
• Check that dish machine is sending a signal.
b. Unit is not primed
• Prime the unit by using the Priming position of the
power switch, or by activating the appropriate signal
to run the pump.
c. Power switch is in the wrong position • Confirm the power switch is in the I(ON) position
d. Pump tube is damaged or worn • Replace pump tube as needed.
e. Foot filter is clogged, or incorrectly positioned
• Remove the foot filter and clean as needed.
• Check to insure the weight is installed correctly and
the filter is positioned at the bottom of the container.
f. Clogged delivery tube or bad connection
of tubing or fitting
• Check and tighten all connectors.
• Replace tubing and fittings as needed.
3. Excessive or inadequate chemical consumption a. Incorrect pump wiring • Check wiring from dish machine.
b. Clogged delivery tube or bad connection
of tubing or fitting
• Check and tighten all connectors.
• Replace tubing and fittings as needed.
c. Worn pump tube • Replace pump tube as needed.
7.O1 Specifications (Specifications subject to change without notice.)
Category Specification
Size 9.3 in (235 mm) High x 9.3 in (237 mm) Wide x 5.2 in (132 mm) Depth
Weight 3.5 lbs (1.6 kg)
Power Rating 90 to 260 VAC at 50/60 Hz up to 50 mA
Flow Rate (at full speed) Detergent Pumps: 100 ml/min (3.4 oz/min)
Rinse Pumps: 17 ml/min (0.57 oz/min) or
100 ml/min (3.4 oz/min) depending on model
Duty Cycle 20 hours on, 4 hours off
Regulatory Approvals
CE
89/336/CEE
72/23/CEE
Regarding “Electromagnetic Compatibility” and the subsequent modifications 92/31/CEE, 93/68/CEE and 93/97/CEE
Regarding “Low Voltages”, and the subsequent modification 93/68/CEE, 2002/95/CE, 2002/96/CE and 2003/108/CE
“RoHs and WEEE Directive”
UL
CSA
778:ed6-2016
C22.2 No.108:14
Standard for Motor-Operated Water Pumps
Liquid Pumps
Wetted Parts: Material of Construction
Chemical Pickup “Foot Filter” Polypropylene
Chemical Pickup Tubing Santoprene®(Detergent and Rinse models)
Pump Squeeze Tube Santoprene®(Silicone is available on request.)
Pump Discharge Tubing PVC for Detergent models / Polyethylene for Rinse models
Injection Fitting(s) Polypropylene
Environmental Specifications
Temperature 50° to 104° F (10° to 40° C)
Humidity 95% relative humidity, maximum
Indoor Installation Approved for indoor use only. Must not be installed outdoors.
7.OO Specifications

14
8.O1 Limited Warranty
Seller warrants solely to Buyer the Products will be free from defects in material and workmanship under normal use and
service for a period of one year from the date of completion of manufacture. This limited warranty does not apply to (a) hoses;
(b) and products that have a normal life shorter than one year; or (c) failure in performance or damage caused by chemicals,
abrasive materials, corrosion, lightning, improper voltage supply, physical abuse, mishandling or misapplication. In the event
the Products are altered or repaired by Buyer without Seller’s prior written approval, all warranties will be void.
No other warranty, oral, express or implied, including any warranty of merchantability or fitness for any particular
purpose, is made for these products, and all other warranties are hereby expressly excluded.
Seller’s sole obligation under this warranty will be, at Seller’s option, to repair or replace F.O.B. Seller’s facility in Cincinnati,
Ohio any Products found to be other than as warranted.
8.O2 Limitation of Liability
Seller’s warranty obligations and Buyer’s remedies are solely and exclusively as stated herein. Seller shall have no other
liability, direct or indirect, of any kind, including liability for special, incidental, or consequential damages or for any other claims
for damage or loss resulting from any cause whatsoever, whether based on negligence, strict liability, breach of contract or
breach of warranty.
8.OO warranty
Hydro Systems
3798 Round Bottom Road
Cincinnati, OH 45244
Phone [phone]OO
Toll Free 8OO.543.7184
Fax 513.271.O16O
Web hydrosystemsco.com HYD10099669 Rev A 01/21