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Showing results for tags 'diaphragm'.
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Hello, I live on a 45FT narrowboat, and few days ago my domestic water system started to play up. First it just bursted out with water when i opened tap then went on as usual, but since yesterday i keep loosing pressure after running taps for a while, and then i loose all pressure but the pump keeps running. It looks like it can output only certain amount of water then it fails. I have a flojet R4305 - 500 installed, i put some photos of model and arrangement here> https://www.dropbox.com/sh/f5wpaxhxsli0kok/uvBnpvbWbb I was trying to air the system using this trick i have found on anther forum> "Folks should get in the habit of turning off the water pressure and then opening one of the faucets to bleed the air out when they leave the boat to take the pressure off the pump diaphragm, then shut the faucet. When you return, and turn the pressure switch on again, the pump will run for a very short time." ...but it resulted extreme amount of bubbling noise in the system otherwise yielded no results, apart of having water for a while (plus some rust today!) then loosing all pressure again. so now i keep turning of the pump circuits to keep the pump from buzzing forever (it keeps coming back if i turn electricity on). It somehow fixes system for a little while, i have running water, the pump turns itself off when turning taps off(with a kind of odd delay), but then i loose pressure again. Please let me know if you have any idea how to fix it. Thanks Zsolt