mogs Posted October 7, 2015 Share Posted October 7, 2015 The ballon is now 4 years old.We've noticed that water seems to be consistently going into the overflow pipe and making a gurgling noise as it does it.Today we decided to change the security valve to the overflow but unfortunately the problem still persists.Any ideas please? Link to comment Share on other sites More sharing options...
Théière Posted October 9, 2015 Share Posted October 9, 2015 On heat up the water will expand so quite likely to drip but with a new GdS it should stop after it gets to temperature.No other good ideas come to mind unless new one is faulty. Link to comment Share on other sites More sharing options...
mogs Posted October 9, 2015 Author Share Posted October 9, 2015 Thanks Theiere.We turned the pressure down on the GdS, it is still doing it but not so bad. At least any overflow is going straight into the overflow pipe so touch wood no wet floor (yet). Link to comment Share on other sites More sharing options...
Chancer Posted October 9, 2015 Share Posted October 9, 2015 You cannot turn down the pressure on a groupe de securité, they are preset at 7 bar IIRC Are you sure that you are not opening the purge valve instead? I'm not surprised that the new one leaks, they are pretty crap quality now, its far better to descale the old one with vinegar and remember to use the purge function regularly. Is your hot water at the correct temperature? If the stat sticks open then the GDS will dribble all the time during HC. Link to comment Share on other sites More sharing options...
ventodue Posted October 9, 2015 Share Posted October 9, 2015 Like Chancer. If water is flowing out thru the GdS (and yes, it will 'gurgle' when it does), then either:1) The GdS is faulty.2) The water inside the ballon is getting over-heated, i.e. the thermostat is faulty, causing the pressure valve in the GdS to release (as it should).Also as Chancer: unless I've missed something, it's not possible to vary the pressure release setting on a GdS. They're pre-set at 7 bar. You might be well advised to read up on how one functions.P.s After 4 years, and depending on what your water's like and also on how you use the chauffe-eau, you may now need to be thinking about a détartrage, btw. Oh, isn't that that's always a happy way to spend a morning!Craig Link to comment Share on other sites More sharing options...
mogs Posted October 9, 2015 Author Share Posted October 9, 2015 Thanks to all for advice. Will have to wait for OHs return from work but will give him your suggestions.BTW the ballon is supposed to be a de-calc one, should it still need to be de-furred, if so, how? Link to comment Share on other sites More sharing options...
ventodue Posted October 10, 2015 Share Posted October 10, 2015 Hi Mogs,The only anti-corrosion/anti-calcaire system that I personally know of is a sacrificial anode which is installed inside the ballon. These are ... kinda successful/ better than nothing. They delay things, rather than prevent them.But maybe technology has moved on and you have something else? Dunno ...Craig Link to comment Share on other sites More sharing options...
AnOther Posted October 10, 2015 Share Posted October 10, 2015 Have you checked the incoming pressure, that plus the increase in pressure due to heating is what lifts the GdS.Mine is preset to 7.5 bar and with the balloon thermostat at max any more than 4 bar on the incoming will lift it. Link to comment Share on other sites More sharing options...
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