I have today fitted a 15ltr tank to my boat water system, the problem i have is that the water pump, now does not shut down, it continues to pump, I have to shut the pump down, to stop it.
Prior to fitting the pump fed 3 sinks, and the shower, no problems. By the way there is no expansion tank fitted, is this the problem.
Thanks for any help
2006-11-19 07:17:21 · 6 answers · asked by joe f 1 in Cars & Transportation ➔ Boats & Boating
stupid answer, but figured id throw this in too. make sure you have the pump the right way around. if its backwards it will be trying to pressurize the tank, and will burn out before it does it.
sounds stupid, but i work on RVs, it is not uncommon, even from the factory. so double check that.
2006-11-21 11:56:28 · answer #1 · answered by uncle_bobs_uncle 3 · 0⤊ 0⤋
Sounds like the pump? It should be fitted with a pressure switch that will cut the motor once water pressure builds up in the system which can take a while depending on the GPM of the pump. You should also install an Accumulator tank which reduces the cycle on and off of the pump thus saving power and a more regular water flow. If none of the above applies you are sucking in air from somewhere in the system. Fill the tank, open a faucet and turn on the pump to expel any air then turn the faucet off when you have a clean flow of water. The system will then pressurize and shut off, if not check your fittings.
2006-11-19 23:26:51 · answer #2 · answered by Mike D 3 · 0⤊ 0⤋
i assume you have a pressure switch ?
Maybe not, the original pump might have had a integral pump and you didn't realise that the new pump hasn't got one ?
If you have a switch then it could be you are leaking water somewhere in the pressurised system, or maybe the pump can't maintain a sttic pressure, or maybe the pressure switch is bust.
whatever the reason, its not rocket science so a bit of isolate and check is required to narrow down the fault.
Maybe put an isolating valve just upstream fo the pressure valve and see if the pump turns off. If it does, then you have a leak upstream.
If it doesn't then youv'e got to swap out the switch/pump to see which ones broken.
remember to drain it for winter. Mr Frostys about.
2006-11-20 01:17:15 · answer #3 · answered by Michael H 7 · 0⤊ 0⤋
I don't think that it's because you haven't an expansion tank.
I think that you should have a pressure cut off switch, which cuts the electrical supply to your pump when a particular pressure has builtup in the system. When a tap is opened the pressure falls and the pump is switched on, conversely, when there is no water being drawn from the system the pressure will build up and the pump will be switched off.
2006-11-19 08:55:45 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Install a pressure switch on the outlet of the tank (pressure tank as I think is what you mean.) They are adjustable for cut in/cut out pressure. Need a gauge together with your switch so you can set the right pressure. Check with hardware store or water well company.
2006-11-19 20:15:19 · answer #5 · answered by redacatfish 2 · 0⤊ 0⤋
Hi >
I agree with the above.
A shut-off pressure valve should be installed in-line to the feed to the boat systems. Heating, shower, whatever.
No big deal, but mine falters now & then. It produced unwanted pressure to my systems.
The little red valve solved the problem.
All the best in boating,
Bob the Boat.
2006-11-22 00:39:27 · answer #6 · answered by Bob the Boat 6 · 0⤊ 0⤋