12V pump on idle??
Hey, went camping for the first this year, noticed this problem when we got the trailer last year, but though I figured it out...well I didn't. The Situation went like this...the pump did not get to p...
Forum Discussion
MontanaCamper wrote:
Opened it up..finally had some time last night. Had a little white stuff (calcium) deposits, scrubbed and scrubbed the stuff...little bit of CLR, more scrubbing and scrubbing..rinse and rinse...put it back in and still idles...what is the center screw that looks like it attaches to the diaphragm in the front, looks like an adjustment of some sort...
I'm guessing that you have the common Shurflo 2088 style pump. If that's the case, the screw controls the cut-in/cut-out pressure settings. The factory settings are 25 PSI/45 PSI, but sometimes there are restrictions in the RV piping that induce enough back pressure to cause the pump to cycle improperly, requiring adjustments via the screw setting. Worn valves or a leaking diaphragm can also cause symptoms that can be temporarily relieved by adjusting the setting.
