Water pump

[Donald Spithaler]

Greg
Thanks for the info on the water valve plumbing loop. If I have to
replace or rebiuld that the sporlan valve I know where mine is.
Unfortunately it is in my curbside bedroom closet behind my chassis
heater. It is hard to see let alone get to. I that because Randy
replaced one a few years ago in an SP.
Don
89 SP 36'
Butler, PA Zephyrhills, FL

On Feb 10, 2008 10:57 PM, Gregory OConnor wrote:
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> Sporlan is a name brand for the electric valve that fills the
> potable water Tank. On many other campers, there are two hook up
> points for water. one point fills the tank and the other is for
> connecting city water to pressurize your plumbing loop. Wanderlodge
> has only one hookup point.
>
> The one hookup point is passivly connected to the loop so by hooking
> in and presurizing the connection hose, you are only pressurizing
> the plumbing loop. while hooked up you can fill the tank by activly
> energizing the electric Sporlan valve. when the valve opens it dumps
> water into the tank.
>
> The problem with Sporlan valves are that if the valve fails and
> stays open you have a opening in your plumbing loop. when the 12v
> pump comes on it takes water from the potable tank and pushes it
> into the loop but the open sporlan is dumping most of that water
> back into the tank. I wish BB put a backflow valve on the city water
> input line after the input flow passes the sporlan tankfill tee
> branch. the backflow valve is all the way at the female hosebib
> hookup at the bus.
>
> The sporlan in my 94 tankfill is a diaphram valve like a lawn
> automatic sprinkler valve. (some sporlans differ) On a lawn system
> there is always pressure up against the valve waiting for it to get
> a signal to open. the diaphram valve needs pressure on the input
> side to stay closed. In the bus the pressure is often turned 'off
> and on' which allow the valve to float open and slime builds on the
> seals making them hard to reseat once there is pressure to close
> the valve.
>
> GregoryO'Connor
> 94ptRomolandCa
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