water pump cycling

craigf

Member
Joined
Jan 31, 2012
Messages
23
Fluid Motion Model
C-28
Non-Fluid Motion Model
pdq 36, catana 401 Leopard 40
Vessel Name
rum tum
r 27 2012 model.

The fresh water pump will not stop cycling. Approx a min between each start stop.. Have check out connections at sink and head.. no leaks Wonder if its a possible pressure leak down within the pump.. Anybody out there with an possible answer.
Find no water on floor under connections.

rum tum tugger
r 27
craig and mary farnsworth
 
craigf":35e7bq9s said:
r 27 2012 model.

The fresh water pump will not stop cycling. Approx a min between each start stop.. Have check out connections at sink and head.. no leaks Wonder if its a possible pressure leak down within the pump.. Anybody out there with an possible answer.
Find no water on floor under connections.

rum tum tugger
r 27
craig and mary farnsworth

look at the hot water heater, and check bilge.
 
Could also be a leak at the pump connections. They are under the helm floor , have to pull the cabin heater out to see it
 
Also check fittings for shower. There are two "T"s under the access plate under the head sink.
 
If following the advice of other posters here does not resolve things… then

Your R-27 quite likely has the fresh water level gauge… if so, is the level indicator slowly indicating water level dropping.

Until you find the cause, I would flip the water pressure breaker OFF.

Try running the water tank dry via the sink faucet and then refill the tank partially to see if that resolves things.

If you cannot find any source of water leaks and the water tank level indicator stays constant either the pump is faulty and/or even the water level display could be inoperative.

When the pump activates, how long does it run for ?
 
There was an issue with crud in the piping causing the seals in the. Pump to fail to seal.
Some were able to disassemble and get working. I had to replace my pump.
 
On my R-25 the leak was from the back side of the city water preasure reducer (starboard side hose fitting)

You can see it behind the 2 hoses going to the kitchen sink. If you do pull the fitting from the out side, DO NOT LET GO of the hose!!
 
If you have no leaks then the pump is faulty. I had this happen some time ago and had to replace the pump. The pressure switch was bad...
 
For us, same as for jmangiameli.
The fitting on the back side of the inlet was leaking.
I removed the inlet from the outside, and removed the hose from the fitting.
As jmangiameli said, DO NOT DROP THE HOSE !!!
I tied a string to the hose before removing it from the fitting.
I then unscrewed the elbow from the inlet, applied some teflon tape, and reassembled everything.
No more leak.
Also , as jmangiameli said, I could see the back side of the inlet thru a hole in the hull liner under the galley sink.
I was able to determing the inlet WAS the source of the leak before I started taking stuff apart.

We also had a leak at the water heater. The hose blew completely off the fitting. This occurred while we were attached to shore water supply, so the boat began to rapidly fill with water. Hint: ALWAYS turn off the shore water supply at the dock when leaving the boat.
 
We had the same problem with water pressure cycling last night on our R-29 "Puffin"
After reading the above posts, I checked the inside for leaks (none obvious) then before I was about to drain the water tank and refil I noticed the outside sink faucet slowly dripping. Turns out it was not turned off all the way and was causing the cycling, easy fix so before you go down the route of checking interior plumbing lines and hoses make sure none of your faucets have a slow drip! Easy to forget the outside wash down sink tap!

Tanya Foster
 
This bugged me for a while on my R 25SC and this is what I noticed. :idea:
I get no cycling with all the water at the same temperature, cold with water with water heater off.
I get a slight bumps on my water pump after cruising as the hot water tank cools down. It is like as the hot water cools down the system pressure drops. 180 degree +at the water heater will cause extra pressure.
 
We also had leaking behind the shower at the "T" joints. We accessed the plumbing via the end wall at guest/storage quarters. Put liquid thread on all fittings to ensure a tighter seal and problem was fixed.
 
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