MarkyP Posted September 2, 2019 Share Posted September 2, 2019 Any advice on this valve would be appreciated. I do the odd of bit of plumbing DIY but our kitchen fitters used a plumber and a pressure reducing valve was fitted, I think to meet requirements of our Quooker hot tap for a 2 - 3 bar supply. However, the cold water from the Quooker mixer tap is down to a dribble. It was always a bit low from installation but plumber assured us it was fine, but since then it's gradually slowed to a trickle. We did have a mains leak in the village last winter and when that was fixed it seemed that our pressure to the house fell quite a bit, it's still fine in the other rooms without valves, still good strong pressure in showers and various other cold taps in the house. Are these valves adjustable? Can they suffer with limescale (hard water here)? In the pic below there is a hard plastic nut/cover to visible side and I can feel a metal nut of some kind on the other side. But have resisted the temptation to start fiddling so far! Any tips? Link to comment Share on other sites More sharing options...
PeterW Posted September 2, 2019 Share Posted September 2, 2019 No but they can get jammed with muck so cleaning it may be needed. Link to comment Share on other sites More sharing options...
Jeremy Harris Posted September 2, 2019 Share Posted September 2, 2019 It may have a screwdriver slot in the hole in the grey cover, and turning that should adjust the set pressure. Both of the pressure reducing valves I've fitted had grey plastic covers that look a bit like that, and both have an adjustment screw on the top. 1 Link to comment Share on other sites More sharing options...
MarkyP Posted September 2, 2019 Author Share Posted September 2, 2019 should that plastic cover come off? Have given it a bit of a twist just now but it didn't want to budge and being plastic I didn't want to try too hard. The hole isn't very large, I managed to get a small flat head in there but didn't find a screw head. I've already had a look from my wife which says this is going to end in tears. Link to comment Share on other sites More sharing options...
Onoff Posted September 2, 2019 Share Posted September 2, 2019 I think they are serviceable as in they maybe have mesh filters that can be cleaned? Only saying this as I fitted one and over time the mains water pressure has lessened. Pretty sure they work better if fitted on horizontal pipework...I didn't! Need to service this but not a fan of working behind cramped WCs around which kids have been missing thd pan! Link to comment Share on other sites More sharing options...
Jeremy Harris Posted September 2, 2019 Share Posted September 2, 2019 I have a spare one somewhere that I'll try and dig out tomorrow and take some photos. It may be that not all of them are adjustable. Link to comment Share on other sites More sharing options...
MarkyP Posted September 3, 2019 Author Share Posted September 3, 2019 Having had another look, I think it says 2bar on the side of the valve, I wonder if this is a fixed pressure type and cannot be adjusted. Might need to replace it.. Link to comment Share on other sites More sharing options...
Temp Posted September 3, 2019 Share Posted September 3, 2019 The few I've played with come preset to a marked pressure but can be adjusted later. If it can't be adjusted I wouldn't fit it because they do seem to need it every few years. Link to comment Share on other sites More sharing options...
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