I bought 2005 Fourwinds TT 25'...I did not check the pressure from water pump (only) since it was connected to city water. I too have been running from city (good pressure) so now that I went camping I noticed the Kitchen does not have pressure like the bathroom. I can hear the pump Revving up and down when the kitchen water is turned on. No it is NOT the facet being clogged...What else could it be. I do notice a few wires loose from undercarriage of the TT on water side around tank area.(sensor wires i believe) The pressure in the bathroom is great. Sometimes the shower will rev up and down but pressure ok. I appreciate any feed back.

There is only one water pump in nearly all RVs. In one the size of yours . Unless someone has modified the plumbing , it’s almost guaranteed to be only one. If the aerator is not clogged, there is probably a kink or obstruction in a water line. Is it only on the hot or cold side? Another possibility would be a defective faucet. (And a good possibility). The valve has gone bad. Get one from local store , Lowe’s Home Depot etc , matching spacing. Better quality and probably cheaper than from anRV place Ken

Remove the aerator on kitchen sink faucet and then check how flow/pressure is.If improved.remove flow restrictor in aerator

Probably only one pump, the aerator is the most likely culprit.

Sureflo makes a little itty bitty filter that goes anywhere one wants to put it, we had a 5th wheel with one under sink?? I'm guessing some owner along the way thought it filtered water for drinking ??

One other issues could be the distance. If the pump is 8 ft. from the bath but has 20 plus feet of pipe to the kitchen, it may not able to deliver the same volume to each.If you hook to city water and the bath and kitchen water are about the same but with the pump it is not. You may have a plumbing issues between the pump and city water pipes or you may be asking the pump to do more than it can.

Kitchen Water Pump issue! | Good Sam Community

16 Replies

aztecaa
Explorer
Mar 08, 2018
Yaaa, I finally got around to fixing the issue. Yup, a little white plastic piece stuck way inside. i thought it was part of the facet. I took air hose and blew from both sides of the facet and that son of a gun went flying out along with something else (don't know, maybe h2o deposit). I also disconnected the pump out and put hose on end to check the pressure (very strong). Put all back together except for the plastic piece and great water pressure. Thanks all! Happy camper!
GordonThree
Explorer
Feb 02, 2018
Depends on what's wrong with the battery. Troubleshoot that first, or just replace it. Without good 12v you'll have more problems than just the water pump.
aztecaa
Explorer
Feb 02, 2018
I'll disconnect outlet side of the pump and run it into a bucket to see if it does the same thing over the weekend.
Any answers regarding weak 12 volt battery? And or does being plugged in cancel out the battery when using the H20 pump?
rbpru
Explorer II
Jan 31, 2018
I agree that is sound like the pump might be starved for water and sucking air. Inlet pipe or inlet filter maybe.

Can you run the water straight out of the pump outlet to see if it ramps up?

I bought a pump fitting and a clear 1/2" plastic hose at Tractor Supply and can the pump water into a tub straight from the pump outlet.
GordonThree
Explorer
Jan 31, 2018
Thinking back, I have heard a pump revving when I kept tropical fish.

A filter pump with an air leak on the intake would rev ... The motor rpms would be low and steady for a while until it sucked in a lot of air. Then the rpm would rev way up since the impeller was no longer in water. Eventually it would break the air lock, refill with water and rev down again.

Maybe there's something wrong with the intake for your pump.
aztecaa
Explorer
Jan 31, 2018
Does a weak battery cause this issue? The revving up and down is very much like a weak battery that is giving power to the pump, ramping up and down maybe better term. I did charge the battery up and thought it was good. Maybe my battery has no more cranking amps in it. I need to put a load test on it. If in fact Battery can cause this issue.
If I'm plugged into 110 Volt doesn't that bypass the battery?
I took out the shurflow and put in a flowjet I had in RV. Does the same sound, ramping up and down.
ScottG
Nomad
Jan 30, 2018
GordonThree wrote:
What does revving up and down mean? I've never heard my pump revving like a muscle car motor or something. It turns on and makes noise and then it turns off and makes no noise.

Makes me wonder if it's one of the old variable speed "Shurflow Smart Sensor" series that were so prone to failure.

Or, is the converter dying?
GordonThree
Explorer
Jan 30, 2018
What does revving up and down mean? I've never heard my pump revving like a muscle car motor or something. It turns on and makes noise and then it turns off and makes no noise.
bobndot
Explorer III
Jan 30, 2018
more info :

https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/28579690/print/true.cfm
westend
Explorer
Jan 30, 2018
Have you measured electrical current at the pump? Bad connections, a low battery, or failing converter might all lead to a loss of electrical supply to the pump.
Surging pressure at the pump output may mean a poor supply of water to the pump inlet. All connections, valves, tank outlet, and filter, if installed, may be the culprit.

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Kitchen Water Pump issue!

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