Have a certified technician install all parts to prevent product damage and personal injury.

All water tanks we carry must be vented, they are not pressurized tanks allow air to move in and out when filling and emptying the tank.
Do NOT fill the tank directly from a pressurized line (garden hose), this is not a safe option and will explode the tank. We recommend using a fill dish to allow for gravity feeding of the tank, please review our plumbing example for more information.
What fittings will I need?
This will depend on how you are setting-up your tank and will vary by application. Please view our Plumbing Category for information on loose fittings we carry.
At this time Class A Customs only installs the following fittings into our Fresh / Gray tanks
1/2" NPT Female
1 1/2" NPT Female
1 1/4" Outer Diameter x 2: Long Smooth Pipe (Boss Fitting)
It is recommended to use plastic male fittings with plastic female fittings to avoid damaging the threads, metal thread fittings can crush the plastic threads.



You can also have fittings moved in tanks to help make plumbing easier. WATER TANK FORM
Pipe sizes do refer to physical dimensions, but the plumbing industry standard for the sizes of pipe is not always as straight-forward as measuring the pipe. Measuring the pipe will oftentimes mislead you into choosing the wrong pipe, so do take care. The "pipe thread size" as shown in column 3 of the table below is measured and based on the inside of the pipe. But, to actually determine the size of a pipe, the outside diameter of each pipe or fitting must be measured and compared to the table for size identification. For example, a 3/4" NPT pipe thread has an outside diameter of 1.050 inches. Each thread size has a defined number of threads per inch (TPI). The 3/4" NPT pipe thread has 14 threads per inch. Both the TPI (threads per inch) and OD (outside diameter) of the thread are required for positive identification of thread size because several sizes have the same TPI.