Kate Campbell Posted May 20, 2006 Share Posted May 20, 2006 Hello, sorry but this topic has probably been covered a hundred times before but I need an answer to a question quickly. Are chauff-eaus supposed to lose a certain a mount of water each day into an overflow which comes as part of the security kit?Thanks in advance. Link to comment Share on other sites More sharing options...
Chas Posted May 21, 2006 Share Posted May 21, 2006 Yes is the short and quick answer! Not sure of the technical details but I am sure someone will point you in the right direction if you need them. Quite often plumbed in to waste drainage but we collect ours for the garden. Link to comment Share on other sites More sharing options...
Jc Posted May 21, 2006 Share Posted May 21, 2006 Ours has a safety valve and overflow plumbed in but I have never seen any water come out of it;I presume that when the water expands as it heats it displaces water back up the supply. Link to comment Share on other sites More sharing options...
Bassman Posted May 21, 2006 Share Posted May 21, 2006 Ours does it as well, we sometimes hear it dripping [;-)] Link to comment Share on other sites More sharing options...
Tony the Turner Posted May 21, 2006 Share Posted May 21, 2006 Unlike most UK hot water systems, the French use mains pressure for hot water. The chauffe-eau has a relief valve (known as a groupe de securite). There is usually a pressure regulator adjacent to the stop-tap to bring the incoming pressure down to that required by the chauffe-eau. Our pressure regulator went poorly and caused the groupe de securite to evacuate excess water all the time as the incoming pressure was greater than the "blow-off" setting. In normal use, as the water expands when heated, the groupe de securite will open to release the pressure, hence the flow you mention. Link to comment Share on other sites More sharing options...
Kate Campbell Posted May 22, 2006 Author Share Posted May 22, 2006 Thankyou for your prompt replies. Link to comment Share on other sites More sharing options...
Kate Campbell Posted May 22, 2006 Author Share Posted May 22, 2006 Thankyou for your prompt replies. An english speaking plumber told me that there should be no leakage of water at all and that there is no need for the valve! Link to comment Share on other sites More sharing options...
Val_2 Posted May 22, 2006 Share Posted May 22, 2006 A warning for folks here. If there has been major works carried out regarding the water supply in your vicinity, check your chauffe-eau as quite often when the pressure is returned to the supply, it can blow the groupe as we have found several times with different clients when works have been done near to their homes and the returning pressure has been higher than they received previously. Link to comment Share on other sites More sharing options...
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