jack Posted September 12, 2016 Share Posted September 12, 2016 Could your system have more air in it than next door's? I was surprised how much entrained air we had in ours when we first set it up - took quite a bit of effort to get it properly "burped". We also had lots of pressure changes until we got that right. Link to comment Share on other sites More sharing options...
Trw144 Posted September 12, 2016 Share Posted September 12, 2016 It could possibly be this - I ll leave it a day or so and see what happens, its just frustrating not being able to carry on with the build upstairs until I know. In a way, it would be easier if it was leaking so at least I could get the floor ripped up and get it sorted. I guess if it was a leak then pressure should drop steadily to zero, and at a relatively steady rate. Link to comment Share on other sites More sharing options...
PeterW Posted September 12, 2016 Share Posted September 12, 2016 Could be an airlock in one of the loops - it would compress and contract more Link to comment Share on other sites More sharing options...
Trw144 Posted September 12, 2016 Share Posted September 12, 2016 I ll head out and lunchtime and spend some time flushing through each zone individually. Link to comment Share on other sites More sharing options...
Trw144 Posted September 12, 2016 Share Posted September 12, 2016 Well been back, plumbers were on site and put pressure up to 4 bar this morning, its now at 5. Link to comment Share on other sites More sharing options...
Gone West Posted September 12, 2016 Share Posted September 12, 2016 Just a thought, but if it's a very small hole with a flap of material remaining it may only leak significantly above a certain pressure. Link to comment Share on other sites More sharing options...
Trw144 Posted September 12, 2016 Share Posted September 12, 2016 Its at 4 bar now so should be leaking something I would have thought. I guess the opposite could also be true and it is only leaking below a certain pressure also! I m going to assume its ok and keep an eye on it. Final floors upstairs are nt going down for a few weeks or so, although I will be pastering beneath so any significant leak will make a bit of a mess. Link to comment Share on other sites More sharing options...
Trw144 Posted September 13, 2016 Share Posted September 13, 2016 Back to 3 bar this morning, I think if I see it rise back towards 4 bar today as the temperature increases then it would finally put my mind at rest. Link to comment Share on other sites More sharing options...
PeterW Posted September 13, 2016 Share Posted September 13, 2016 Is this set in concrete or in spreader trays under the floor ...?? Link to comment Share on other sites More sharing options...
Trw144 Posted September 13, 2016 Share Posted September 13, 2016 (edited) spreaders, but its sat on battens above the osb floor, with chipboard then on top, so I cant see it from below.. Does mean temperature is likely to fluctuate more than downstairs where it is set in the screed Edited September 13, 2016 by Trw144 Link to comment Share on other sites More sharing options...
PeterW Posted September 13, 2016 Share Posted September 13, 2016 Also allows the pipe to expand more as there is nothing restricting the expansion. Link to comment Share on other sites More sharing options...
Bitpipe Posted September 13, 2016 Share Posted September 13, 2016 On 9/12/2016 at 08:31, TheMitchells said: Okay- what am I supposed to be looking at here? What is the schoolboy error? Help please for a total plumbing novice. Look closely and you'll see the screw hole in the batten right where the pipe was. About £500 to put right and the plumber and decorators didn't charge for their time... 1 Link to comment Share on other sites More sharing options...
Nickfromwales Posted September 15, 2016 Share Posted September 15, 2016 On 12 September 2016 at 08:31, TheMitchells said: Okay- what am I supposed to be looking at here? What is the schoolboy error? Help please for a total plumbing novice. If you have the opportunity to come up from underneath in a straight line to the outlet, the. No.1 error here was bringing the pipes horizontally through such small battens. I'd avoid that like the plague and I can't see why that can't be avoided if youve got 1st fix going in to a new build. No.2 error was the plasterboard guys not marking the location of the pipe so as to avoid putting a screw through it. I mark the height from the floor to the pipes and write that on the batten with a sharpie, then take a photo on the phone. Very handy as a reference tool for fixing things later down the line eg after tiling etc when you can't remember where any pipes / cables are ? 1 Link to comment Share on other sites More sharing options...
Bitpipe Posted September 15, 2016 Share Posted September 15, 2016 3 hours ago, Nickfromwales said: If you have the opportunity to come up from underneath in a straight line to the outlet, the. No.1 error here was bringing the pipes horizontally through such small battens. I'd avoid that like the plague and I can't see why that can't be avoided if youve got 1st fix going in to a new build. No.2 error was the plasterboard guys not marking the location of the pipe so as to avoid putting a screw through it. I mark the height from the floor to the pipes and write that on the batten with a sharpie, then take a photo on the phone. Very handy as a reference tool for fixing things later down the line eg after tiling etc when you can't remember where any pipes / cables are ? Reason to 1) was that this was the external wall and within the airtightness layer, so we were constrained by that - this is probably the only pipe in the build that runs through the service batten - it spurred off the bath, sink and shower feed (all within the cavity) to feed the WC. 2 is a good point though... Link to comment Share on other sites More sharing options...
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