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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Geberit 360 Fill Valve in toilet
Slight hiss - took out diaphragm and cleaned it and the seating. Still
passing a bit of water. Anything else worth trying. Could the float be sticking a bit? Should I replace it. Not my house - need to see how accessible the inlet is as I don't want to remove the cistern. |
#2
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Geberit 360 Fill Valve in toilet
On 27/08/2020 11:37, JohnP wrote:
Slight hiss - took out diaphragm and cleaned it and the seating. Still passing a bit of water. Anything else worth trying. Could the float be sticking a bit? Should I replace it. Not my house - need to see how accessible the inlet is as I don't want to remove the cistern. I had a standard ball float valve which started to overflow a little. Removing it and cleaning the diaphragm didn't help; in fact, it made matters worse by starting water hammer. A completely new float valve was even worse - water hammer and foghorn! Nothing I tried fixed it, until I turned the pressure down by slightly closing the isolating valve on the mains input to the float valve. It solved the problem immediately. I have a feeling that the water company might have increased the pressure a little as there was a high demand due to lack of rain, and that might have contributed to the problem. Anyway, if there is an isolation valve, it might be worth turning it a little to restrict the input pressure, and see if that stops the hissing. -- Jeff |
#3
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Geberit 360 Fill Valve in toilet
Jeff Layman wrote in
: On 27/08/2020 11:37, JohnP wrote: Slight hiss - took out diaphragm and cleaned it and the seating. Still passing a bit of water. Anything else worth trying. Could the float be sticking a bit? Should I replace it. Not my house - need to see how accessible the inlet is as I don't want to remove the cistern. I had a standard ball float valve which started to overflow a little. Removing it and cleaning the diaphragm didn't help; in fact, it made matters worse by starting water hammer. A completely new float valve was even worse - water hammer and foghorn! Nothing I tried fixed it, until I turned the pressure down by slightly closing the isolating valve on the mains input to the float valve. It solved the problem immediately. I have a feeling that the water company might have increased the pressure a little as there was a high demand due to lack of rain, and that might have contributed to the problem. Anyway, if there is an isolation valve, it might be worth turning it a little to restrict the input pressure, and see if that stops the hissing. Sorry - turning down a valve reduces max flow - not pressure. Many ball valves come with a high and a low pressure nozzle or restrictor. |
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