ever have to thump it?

[memgrove2000]

Our water pump pressure switch has given up acting normal and now needs a thump to work.

We have a 1972 31 foot Sovereign with the PAR water pump and pressure switch. (I think original)

The last few times we were out we had to thump the pressure switch (red square box on the pump) to get the pump to turn on. I tried tightening the screws for the wires and that did not help.

Earlier in the season we had the water tank out and cleaned it good! During that process I found the cover for the switch. I never knew that it had a cover! But when the little square red plastic cover fell on me I knew just the place to look.

We never had trouble with the pressure switch before but did have some loose / broken wire issues a few years ago.

It got old FAST having to tap the switch every time we turned on the water for any thing.

The trailer is in storage now but I would like to know if I should just start buying parts now. or is there some trick lubrication spring tension fix that will work when we get it out again?

The search feature did not show many fixes.

[RickDavis]

I think the PAR pumps are pretty well obsolete and were VERY expensive in their time.
I would seriously consider replacing it with a Shurflo as they are reasonably priced and parts readily available. I have found the old 2088 series to be very reliable. I have heard of problems with the newer quiet constant flow models but can not speak from personal experience on that one

[azflycaster]

You might want to take a look here: Jabsco Par Parts & Accessories

[memgrove2000]

I have a brand new sure flow on the shelf. 2088 2.8 gpm. It was given to me by a friend. I kind of like the idea of one that lasts another 30 + years. The PaR pump itself is good just having trouble with the pressure switch sticking in the off position.

Has anyone ever used some type of lube? Is there an adjustment on the spring?
It only took a little tap to get it to run. There has to be a way to save this old pump.

[memgrove2000]

I cant belive that I am the only one with a problem with this switch.

[Inland RV Center, In]

Originally Posted by memgrove2000

I cant belive that I am the only one with a problem with this switch.

Mike.

Many owners had the same problem as you now have.

Most have chosen to replace the old pump, with something newer, and less expensive, but far removed from the performance that your pump has already given you.

The diaphragm in the pressure switch is the problem, but you would have to replace the whole switch. Not cheap, but you would retain the advantages of a long long lasting high quality pump.

Yes, the new Jabsco pumps are expensive, and so are Cadillac's.

You have to decide to go with a Ugo, or a Cadillac.

Andy