H
highside23
Please bear with me I have a new born baby in the house and I want to get this sorted so I will try and be as concise as possible.
I have a Heatrea Sadia Electromax electric combination boiler.
The original problem I had when the system was fitted was water hammer every time the toilet was flushed (upstairs only) or a tap was opened fully (again upstairs), the pressure was high then the hammer would happen and the pressure would return to normal. I closed in the stop cock a bit and this helped.
Then months later (a few weeks ago) I noticed the overflow was dripping whenever the water in the cylinder heated up. If I opened the expansion valve on the cold water combination valve (which was very easy to do, like it was a bit open anyway, obviously) the pressure would go and the valve became harder to open. I.e working as it should. I emailed Heatrea sadia and they said check the pressure vessel pressure (it should be 3.5bar) I did there was no pressure and I found a faulty valve. I replaced the valve and recharged the vessel. The water hammer is now back and worse than ever!! (It now happens with the downstares taps too) So I emailed them again and they said that the vessel should be pressurized to match the incoming water pressure. I phoned the water board and they don't know what it is and won't come and measure it.
What can I do to stop it!? I know you can get arrestors to put on the toilet, but it’s not just the toilet that does it. Will opening the stop cock fully help? would matching the pressures really stop the hammer?
Please help!!
I have a Heatrea Sadia Electromax electric combination boiler.
The original problem I had when the system was fitted was water hammer every time the toilet was flushed (upstairs only) or a tap was opened fully (again upstairs), the pressure was high then the hammer would happen and the pressure would return to normal. I closed in the stop cock a bit and this helped.
Then months later (a few weeks ago) I noticed the overflow was dripping whenever the water in the cylinder heated up. If I opened the expansion valve on the cold water combination valve (which was very easy to do, like it was a bit open anyway, obviously) the pressure would go and the valve became harder to open. I.e working as it should. I emailed Heatrea sadia and they said check the pressure vessel pressure (it should be 3.5bar) I did there was no pressure and I found a faulty valve. I replaced the valve and recharged the vessel. The water hammer is now back and worse than ever!! (It now happens with the downstares taps too) So I emailed them again and they said that the vessel should be pressurized to match the incoming water pressure. I phoned the water board and they don't know what it is and won't come and measure it.
What can I do to stop it!? I know you can get arrestors to put on the toilet, but it’s not just the toilet that does it. Will opening the stop cock fully help? would matching the pressures really stop the hammer?
Please help!!
