We're really confused by this problem:
We have a Tribune HE unvented system which is roughly 3 years old. A while ago we noticed cold water dripping through the tundish. We replaced the Pressure relief valve & that temporarily cured the problem. Then within a week or so, we noticed hot water dripping through the tundish. The plumber changed the valve attached to side of water tank & that also temporarily cured the problem.
However, cold water has once again started dripping through the tundish. On advice of a plumber, we were advised that the pressure expansion vessel (potable) needed replacing. We have replaced that, but water is still dripping through. It varies from a drip, to a continual stream. Our plumber advised us to keep the mains turned off (unless we needed it for short periods of time) & we've turned the boiler off so we don't have any hot water.
We've also replaced the valve from the CH expansion vessel (red one) & the valve seems okay, as well as it's pressure.
Does anyone have any other suggestions. I'm at a loss of what is causing this problem.
I'm not very clued up on plumbing so any suggestions is 'lay-mans' terms would be appreciated.
Thank you
We have a Tribune HE unvented system which is roughly 3 years old. A while ago we noticed cold water dripping through the tundish. We replaced the Pressure relief valve & that temporarily cured the problem. Then within a week or so, we noticed hot water dripping through the tundish. The plumber changed the valve attached to side of water tank & that also temporarily cured the problem.
However, cold water has once again started dripping through the tundish. On advice of a plumber, we were advised that the pressure expansion vessel (potable) needed replacing. We have replaced that, but water is still dripping through. It varies from a drip, to a continual stream. Our plumber advised us to keep the mains turned off (unless we needed it for short periods of time) & we've turned the boiler off so we don't have any hot water.
We've also replaced the valve from the CH expansion vessel (red one) & the valve seems okay, as well as it's pressure.
Does anyone have any other suggestions. I'm at a loss of what is causing this problem.
I'm not very clued up on plumbing so any suggestions is 'lay-mans' terms would be appreciated.
Thank you