Pumps are for fresh water only

Do NOT use with pond, lake or sea water.

CAN NOT be used with accumulator tank

CAUTION: Pump surface will get hot to the touch if operated for extended periods of time under pressurized conditions. Pump will shut off to cool down. Pumps are for fresh water not pond, lake or sea water.



WATER PUMP BASIC INSTALLATION INSTRUCTIONS

Verify installation instructions in booklet before attempting to install pump.


Step 1: Remove shipping plugs from pump ports. Some water from factory testing may spill out.

Step 2: Connect fitting supplied with the pump the the RV’s plumbing. Use ½” I.D. Flexible hose as shown. Use hose clamps on the slip-on barb hose connectors. Use plastic NPT threads on threaded connectors.

Step 3: Slide rubber mounts fully into mounting tracks.

Step 4: Mount plumbing vertically, with the pump head down or horizontally in an accessible location. If mounting vertically, motor up, attach mounts first then pump head mounts, while supporting weight of pump.

Step 5: Install inlet and Discharge port connectors. Firmly push clips C forward to lock port connectors in place.

Step 6: Install  Strainer in an accessible location (for cleaning and inspecting) before the pump between the tank and the water pump. This strainer or equivalent is required for pump warranty to be valid.

CAUTION: Do not use pipe dope or glue on the fittings connecting the pump, pipe dope or glue may get inside of the pump and will damage the pump, this is not covered under warranty.





12 VOLT WATER PUMP BASIC WIRING INSTRUCTIONS

Verify wiring instructions in booklet before attempting to wire pump.


12 volt - You can not put this in a house or plug into a wall - 110/115/220 volt will damage the unit.

Step 1: Use 14 gauge stranded wire to 20', 12 gauge to 50' from power source.

Step 2: Use a 10-15 amp rated on-off switch on the (+) positive motor lead.

Step 3: Install a 10 amp fuse protection on the positive lead.




110 VOLT WATER PUMP BASIC WIRING INSTRUCTIONS

Verify wiring instructions in booklet before attempting to wire pump.







 

TROUBLESHOOTING

WARNING: BEFORE SERVICING PUMP, TURN OFF PUMP AND DRAIN WATER FROM SYSTEM


Failure to Prime - Motor operates, but no pump discharge

• Restricted intake or discharge line

• Air leak in intake line

 • Debris in pump

 • Punctured pump diaphragm (pump leaks)

 • Crack in pump housing Motor falls to turn on • Loose wiring connection

 • Pump circuit has no power

 • Blown fuse

 • Pressure switch failure

 • Defective motor Pulsating Flow

 • Restricted pump delivery. Check discharge lines, fittings and valves for clogging or undersizing


Pump Fails to Turn Off After All Fixtures Are Closed

• Empty water tank • Insufficient voltage to pump (low battery)

• Punctured pump diaphragm (pump leaks)

• Discharge line leak • Defective pressure switch Low Flow and Pressure

• Air leak at pump intake

• Accumulation of debris inside pump and plumbing

• Worn pump bearing (excessive noise)

• Punctured pump diaphragm (pump leaks)

• Defective motor


WINTERIZING SANITIZING SYSTEM CARE AND MAINTENANCE

Allowing water to freeze in the system may result in damage to the pump and plumbing system.


Non-Toxic antifreeze for potable water may be used with Flojet pumps.

Follow manufacturer's recommendations.

Refer to coach or equipment manufacturer's instructions for their specific winterizing and drainage procedures.

Do not use automotive antifreeze to winterize potable water systems. These solutions are highly toxic and may cause serious injury or death if ingested.

1. Drain the water tank. Open tank drain valve and plumbing drain valves if applicable. You may use the pump to drain the tank by opening all the faucets in the system. Allow the pump to operate until the tank is empty. Do not operate the pump more than 15 minutes continuously.

2. Open all faucets and flush the toilet to purge all the water from the pump and the plumbing system. Run the pump until no water is coming through the faucets. Turn power to the pump off. Be sure that all the water from the drain lines are drained.

3. Remove quick connect inlet and outlet fittings from the pump and turn the pump on to pump out remaining water from the pump head. Be sure to have a catch pan or a rag under the pump to prevent water from spilling onto the RV. Turn the pump off once the plumbing is empty. Leave the fittings disconnected from the pump until the system is ready to be used again. Make a note on your tank filler that the plumbing is not connected.

4. Be sure that all faucets are left open to protect against damage to the plumbing. Portable water systems require periodic maintenance to deliver a consistent flow of fresh water. Depending on use and the environment the system is subject to, sanitizing is recommended prior to storing and before using the water system after a period of storage. Systems with new components, or ones that have been subjected to contamination, should also be disinfected as follows: NOTE: The sanitizing procedure is in conformance with the approved procedures of RVIA ANSI A119.2 and the US Public Health Service.


1. Use of the following methods to determine the amount of common household bleach needed to sanitize the tank.

1. A) Multiply “gallons of tank capacity” by 0.13; the result is the ounces of bleach needed to sanitize the tank.

1. B) Multiply “Liters of tank capacity” by 1.0; the result is the milliliters of bleach needed to sanitize the tank.

2. Mix into solution the proper amount of bleach within a container of water

3. Pour the solution (water/bleach) into the tank and fill the tank with potable water.

4. Open ALL faucets (hot and cold) allowing the water to run until the distinct odor of chlorine is detected.

5. The standard solution must have four (4) hours of contact time to disinfect completely. Doubling the solution concentration allows for contact time of one (1) hour.

6. When the contact time is completed, drain the tank. Refill with potable water and purge the plumbing of all sanitizing solution.


Class A Customs Blog Posts With Information

Water Tank Helps Page

Class A Customs Water Tank Fitting Information: Installed Fittings






Class A Customs Fresh and Gray Water Tank Installed Fittings

Class A Customs only installs the following fittings into our Fresh / Gray tanks at this time
1.5" NPT Female - fitting is closed
.5" NPT Female - fitting is open
1.25" Outer Diameter x 2" Long Smooth Pipe / Boss Fitting - Spout

For information on custom fittings or placements please use the Water Tank Build Form, please note this option is only available when order 50+ of a tank on single order.


1.5" NPT Female - fitting is closed
use a razor knife to cut membrane out, easiest when cut in halves




Fittings and Hoses We Offer That Fit 1.5" NPT Tank Fitting

Can be used with 1.5" Fitting on tank to connect to 1.375" Hose

Can be used with 1.5" Fitting on tank to connect 1.5" PVC Pipe for draining fresh or gray water tank

1.375" (1-3/8") Food Grade Water Hose
1.375" hose can be used with the fill dishes and the Loose Fitting / Fixture - 1.5" Thread x 1.25" Hose Barb Fitting - Gray
1.375" hose can not be used with spouts on tanks.



.5" NPT Female - fitting is open



Fittings and Hoses We Offer That Fit .5" Tank Fitting

Can be used with .5" Fitting on tank with .5" Hose for Fill Dish Vents and Water Pumps

.5" Hose can be used with the fill dishes vents and the water pumps we sell.



1.25" Outer Diameter x 2" Long Smooth Pipe / Boss Fitting - Spout
glues does not stick to pipe, it can not be sealed or capped
you will need to use the 1.25" Hose with Clamp




Hose We Offer That Fit 1.25" Tank Fitting
1.25" (1-1/4") Food Grade Water Hose
1.25 hose hose can be used with the gravity dishes and spouts/boss fittings on tanks.
1.25 hose does not fit the Loose Fitting / Fixture - 1.5" Thread x 1.25" Hose Barb Fitting - Gray



Class A Customs Basic Plumbing Kit Part # BPK
Designed for Class A Customs Stock Fresh Water Tank set-up using a Fill Dish (fill dish not included)
This is for Fresh Water Systems Only - Not to be used for Gray or Waste Water Systems
Kit does not fit a Spouted Water Tank

Water Inlet Items
Fits 1.5" Tank Fittings - Can be used with 1.375" hose

2 (Two) 1.5” Hose Clamps
Can be used with 1.5" Gray Fitting and Fill Dish

Fits 1.5" Gray Fitting and Fill Dish Inlet
1.375" hose can notbe used with spouts on tanks


Vent and Water Pump Items
Fits .5" Tank Fittings - Can be used with .5" Hose for Fill Dish Vents and Water Pumps we sell

4 (Four) .5” Hose Clamp
Can be used with .5" Barb fitting and/or .5" Hose for Fill Dish Vents and Water Pumps we sell

Can be used for Fill Dish Vents and Water Pumps we sell


Drain Items
Fits 1.5" Tank Fittings - Can be used with PVC Pipe to drain






Uniseal Fittings


Uniseal Fittings allow the end user to place a fitting anywhere in the tank.
After cutting a hole in the wall of a tank or other surfaces, the seal is inserted. Then the pipe is coated with a slippery detergent and pushed into the seal. The Du Pont Alcryn® is the key to the liquid-tight seal. When the pipe is pushed through the rubber-like Uniseal® from the outside, the inside Alcryn® wall becomes thin enough to allow the pipe to squeeze through and then forms a liquid-tight seal. The coefficient of friction with the plastic pipe is roughly three times higher than any other material, which allows it to create a better seal than with any other material.








Where are the fittings located on the tanks?
Are there fittings on both ends of the tanks?

Please look at the photos of each tank as fitting placement can vary by tank, typically fittings are all located on one end of the tank.





How do I get the large fitting out? Are these punch out fittings?
Each tank will come with at least one permanently mounted patch, it is from the manufacturing process, this is not a fitting and does not unscrew.






All water tanks Class A Customs carries must be gravity fed and vented, they are not pressurized tanks.
Have a certified technician install all parts to prevent product damage and personal injury.

A garden hose (a connection from your faucet indoors, etc. anything that pushes the water) is a pressurized water line, do not make a secured connection to the water tank with a pressurized line. Tanks need to be gravity feed, this allows for air to escape while the water is going into the tank. You ca use a Gravity Fill Dish located on the outside of your vehicle to fill the tank, please view the Basic Plumbing Diagram below.
"Venting" the tank lets air move in and out of the tank when in use. Tank must have a large enough opening for air to freely move in and out of tank, if tank is not properly vented tank will explode when filled or implode when emptied. Trying to use a pressurized line "half-way" to prevent damage to the tank will does not work because you can control the amount of water flowing but not the pressure in the line, leaving the tank to fill risks exploding the tank or damaging fittings.





What fittings will I need for my plumbing?
We are not aware of how to set-up your tank, set-up will vary by each application this is something you need to research. Have a certified technician install all parts to prevent product damage and personal injury. Please view our Plumbing Category for information on loose fittings we carry. Be sure to Sanitize Tank before installing. It is recommended to use plastic NPT male fittings with plastic female NPT fittings to avoid damaging the threads, metal thread fittings can crush the plastic threads. Very little, if any, pipe thread tape is needed using too much pipe tape will damage the threads. We do not recommend pipe dope as you can not remove the fitting later, if used be sure to use a food safe brand. Do not over-tighten fittings as damage will occur.




Can I use a water pump with the water tank if I am not using a fill dish?
Using a water pump with the tank pressurizes the water line after the water pump, it does not pressurize the water tank.
Again be sure to have a top fitting on the tank open to let air in when removing water from tank.


You will still need to vent the tank, this can be as easy as placing a fitting with a screen secured over it. Be aware that if you overfill the tank the excess water will exit the vent fitting, placing the vent fitting overflow to an outside location is recommended. Be sure to screen over the vent fitting overflow to prevent anything from entering the tank. Do not over-tighten fittings as damage will occur.

Examples of Items to Vent Tanks - We do not sell these products they can be found online
Oatey® 1.5 in. NPT ABS In-Line Vent
Straight, Black Plastic Tank Vent


Additional Examples of Plumbing Set-ups
You will need to verify your needs and set-up, these are examples only, we build our water tanks but do not install them.






Do I need pipe dope or pipe tape to connect the fittings?
It is recommended to use plastic NPT male fittings with the plastic female NPT fittings that are installed in the tank to avoid damaging the threads, metal thread fittings can crush the plastic threads.

Food/Drug Grade Pipe Sealant Pipe Sealant with PTFE EXAMPLE ONLY - We do not sell this item

Very little, if any, pipe thread tape is needed using too much pipe tape will damage the threads. We do not recommend pipe dope as you can not remove the fitting later, if used be sure to use a food safe brand.
Do not over-tighten fittings as damage will occur.


I bought a fitting from my local hardware store and it won't fit.

Be sure you are using NPT fittings and getting the correct sizes. Finding the Correct Pipe Thread Size
You can also print off the items we carry in our Plumbing Category to see if your local hardware store carries them.

Example of Fitting from other suppliers

Clean-out Port

Venting Tanks
Suction Line Strainer that Fits Over 1/2" NPT
Only use this with tanks that will overflow outside of your unit, you do not want to overflow inside of unit.






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