How to Install a Fresh Water Back Flow Preventer on a RV Water Heater

Question

Question:

Which end of the back flow preventer is screwed into the rv water heater stem or head for cold/hot water? Thanks!!

asked by: D G

0

Expert Reply:

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 pointing in the same direction as the water flow. I have attached a photo that clearly shows the correction direction.

expert reply by: Edward F

0

click to enlarge

Answer 1

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.

view full answer...

Answer 2

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…

view full answer...

Answer 3

Fresh water check valves are typically 1/2" NPT fittings, but I wouldn't know if you'd need a female or male connector without actually taking your city water inlet apart. If you remove your city water inlet from the wall of the trailer…

view full answer...

Answer 4

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

view full answer...

Answer 5

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…

view full answer...

Answer 6

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.…

view full answer...

Answer 7

Check valves can fail due to ice in the winter or debris in warmer months, or simple wear at any time. I think if it were me I would try to warm the check valve with a heat source like a heat gun, being careful not to melt the plastic around it. At…

view full answer...

Answer 8

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.

view full answer...

Answer 9

The trailer tire manufacturers we work with all have recommended the information you have seen given in our online answers. The max PSI from most manufacturers the listed capacity at the highest load capacity rating of the ST tire. There are charts…

view full answer...

Answer 10

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,…

view full answer...

Answer 11

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…

view full answer...

Answer 12

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…

view full answer...

How to Install a Fresh Water Back Flow Preventer on a RV Water Heater

Product Page this Question was Asked From

Continue Researching