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Topic: Water pressure tank (Read 765 times) previous topic - next topic

Water pressure tank

Thank You for the Memorial Day background. I had to replace my water-logged water tank.What air pressure should the tank be charged at? I have the same type of system in my house [much larger] and I think the air charge was supposed to be just below the pressure switch cut in pressure. I have no idea what RV pumps run for pressure. Thanks, Mark
Mark Freeman 1995 grand villa, Brimson Mn
8.3 Cummins  G95 4709 40 WTBS U280 WE21

Re: Water pressure tank

Reply #1 –
Mark f
I believe the tank pressure is to be set at 23 lbs. That is what I set mine at.
Donald & Cheryl
1999 U295 36'
2006 Saturn Vue Toad
The selected media item is not currently available.

Re: Water pressure tank

Reply #2 –
Mark,

The new tank should be pre-charged, but if not, I believe 30 psi is recommended.
Don Hay
'92 Grandvilla, U-280
The Hayfever Express
Build #4055
'97 GEO Tracker
Life is like licking honey off a thorn.

Re: Water pressure tank

Reply #3 –
A Shurflo accumulator is pre-charged to 20PSI.Gam
joseph gambaro
1999 U295 36'

Re: Water pressure tank

Reply #4 –
Note the cut-in pressure on the pump spec plate.  Set the accumulator pressure just below this.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: Water pressure tank

Reply #5 –
Be sure you turn the pump off and empty the tank to check the pressure.
1999 U320
Mount Dora Fl

Re: Water pressure tank

Reply #6 –
If you don't know the cut-in pressure of your pump, 30 psi is a safe level. I have replaced two tanks in my last two coaches and set the pressure at 30 psi. As mentioned be sure to turn off the pump and open the fill valve to relieve the pressure in the system before measuring the air pressure in the tank.
The selected media item is not currently available.Kent Speers
Locust Grove, OK
1993 U300 SSE 40' (Restored at FOT 2009) Build 4323
720 watts Solar
6V92TA DDEC Silver Engine
2014 Subaru Outback

Re: Water pressure tank

Reply #7 –
Thanks for the replies. I could not read the tag on the pump, so I will go with 30 psi. The tank was pre-charged at 55 psi. I felt that was too high. Mark
Mark Freeman 1995 grand villa, Brimson Mn
8.3 Cummins  G95 4709 40 WTBS U280 WE21
 

Re: Water pressure tank

Reply #8 –
Yup, two PSI below pump cut in pressure is correct.
Brett Wolfe
EX: 1993 U240
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