Installing a new SureFlo water pump...

[Pete Masterson]

It's actually an "accumulator tank" that accumulates pressure for the water system. It's often located near the main water pump. It will look like a canister of about 6 to 8" in diameter and perhaps 12 to 14" tall. Mine was painted blue. There will be a schrader valve on one end. This allows you to pressurize the diaphragm, if it loses it's 'charge.' Normally you'd fill it with air to about the expected water pressure in the system, that puts the rubber diaphragm at the minimum stretch. As pressure drops, the diaphragm pushes on the water side of the accumulator tank (giving you water pressure). As water pressure is recovered by the pump, it will push the diaphragm back against the trapped air.

Almost all water pump systems (home or RV) have them (sized for the water demand). The usual maintenance issue is that the air pressure has been lost (just put a compressor on it and pump it back up) or the diaphragm has failed (in which case the accumulator tank must be replaced).

Pete Masterson

'95 Blue Bird Wanderlodge WBDA 42

El Sobrante CA

"aeonix1@mac.com"

On Jul 2, 2008, at 4:37 PM, Scott Forman wrote:

Where is the pressure tank?

Scott Forman

86 PT38

Memphis

--- In "WanderlodgeForum@yahoogroups.com", "Ryan Wright" 

wrote:

Thank you for the responses. I ordered the 5.7 from pplmotorhomes, and

the screen/filter for it. Look forward to installing this. I'm going

to go through and tighten any hose clamps I can find before

installation, just to be safe.

I do think I'll keep the pressure tank. I usually keep the pump off,

only turning it on when necessary. The pressure tank allows me to wash

my hands and flush the toilet a couple of times without turning the

pump on, which is nice, especially in the middle of the night.

Appreciate the replies!

-Ryan

'86 PT-40 8V92

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