How To Stop Fresh Water Tank In RV From Leaking

Question

Question:

my rv fresh water tank leaks when I fill it. Is it possible I have an over fill Drain/valve on top of tank?

asked by: John S

0

Expert Reply:

The water leaking is normal its your overflow which means that your fresh tank is now full. If you install a valve on the overflow then it needs to be open when filling and when using or else the tank could explode. It could also be that your check valve went bad. The Valterra Check Valve for RV Fresh Water Systems # P23415LFVP has dual 1/2 inch MPT. The Valterra Check Valve for RV Fresh Water Systems # P23402LFVP has a 1/2 inch MPT x 1/2 inch FPT.

expert reply by: Noah E

0

Answer 1

You should only need the Valterra Check Valve for RV Fresh Water Systems #P23415LFVP at the cold inlet of your water heater. Typically you will have a total of three fresh water check valves; one at the cold inlet to the water heater, one at the city…

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Answer 2

The Dexstar Steel Mini Mod Trailer Wheel - 16" x 6" Rim - 8 on 6-1/2 - Black #AM20761B have a maximum air pressure rating of 110 psi and a weight capacity of 3750-lbs.

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Answer 3

The Valterra 1/2" check valve #P23415LFVP fresh water backflow preventer has an arrow stamped between the threading and the nut. It can be difficult to see, if you don't look closely. You should install the backflow preventer with the arrow…

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Answer 4

Hi Tony, From what I saw your Holiday Rambler has a city water connection which is standard; it isn't always noticeable right away and might be separated from the gravity fill but it's there for sure. I couldn't find a photo but it seems…

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Answer 5

Hello Dan, thanks for reaching out. You asked a good question so I went out to our warehouse and got my hands on the B&B RV Fresh Water Fill Diverter Valve and Plate Assembly #BM35RR. The threaded fittings are not bonded together, and I was…

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Answer 6

You'll want to replace the check valve with the part #P23415LFVP if the internal components of what you have now are coming out.

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Answer 7

Hey Mike, great question! I reached out to Dometic and they said the Dometic Soft Start for FreshJet Mechanical Air Conditioners #DMC87RR is also compatible with the FreshJet 5. You can use this to add a soft start to your new AC unit. Any big trips…

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Answer 8

It sounds like your system needs a backflow preventer like the Camco RV Fresh Water System Backflow Preventer - 1/2" Diameter - Brass #CAM23303. This allows water to flow only in one direction so that your fresh water tank doesn't fill up…

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Answer 9

The best option we have for you is to use the Valterra Check Valve part #P23415LFVP and then go to a local hardware store to look for a 1/2" to 5/8" adapter as we do not carry a check valve with both 1/2" MPT and 5/8" MPT…

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Answer 10

Antifreeze leaking into the water heater could be remotely caused by a bad check valve, however, this would all depend on the location of the check valve. Generally speaking, there are only 2 check valves installed in the plumbing system for an RV.…

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Answer 11

Brass fittings like the #P23415LFVP can be difficult to remove. Especially if there was thread locker or thread tape used. It's hard to say how much force you'd need but you might try heating up the fitting to release any thread locker.

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Answer 12

We do have some check valves available from Valterra and Camco, both of which are big in the RV plumbing industry and have great reputations. The 2 most popular check valves that we have are parts #P23415LFVP, which has 1/2" MPT x MPT fittings,…

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