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We spent 5k only to lay a new floor! Lifting it up without damaging is not possible. Then stripping and throwing out all underlay, lifting the wooden base floor, lifting the joists, crawling through all the house (~80 sq. m!) looking for leakage and fixing it, testing, then replacing the joists...

flameport, dilalio, and Jaleak - thanks a lot for your replies. Let me briefly explain the background: 1. This boiler was installed 18 month ago. Before the house had an old condensation boiler with tank at the loft. That was disconnected and new copper pipes installed from the new boiler to...

Dear forum members, I have an unknown leakage in the central heating system - boiler pressure drops from 1.5 to 0.8 bar every day and I need to refill the boiler (Worcester 28i junior) with water daily. There is a plastic key that needs to be inserted and withdrawn every time to let water in...

that's right. But instead of fixing those (which would be a nightmare), we will eventually disconnect them and put new PEX pipes through the loft.

By using manometer we've found that cold water pipe is OK and the leakage is in the hot water pipe from kitchen to bathroom (either under the wooden floor or in the concrete in the bathroom). So as temporal fix we've put an iso-valvle on the hot water pipe to bathroom. As a long term one - we...

Attached is the boiler pic from the bottom. 1. Can you please tell me which pipe is for the cold water inlet? To close it - I assume I need to turn the relevant screw-valve by 90 degrees, i.e perpendicular to the pipe, right? 2. Also, the condensation pipe is the plastic pipe on the left...

Hi Guys, thanks for following the thread and helping me out with the leak. Brief update of tests I've done over the weekend: 1. Put a paper around the toilet bowl - no signs of mositure over several hours. So I am positive toilet is not leaking. 2. I've pulled out WM and DW out of...

You probably right Tony, the question is how to find WHERE. I am not sure how to identify that. Is this the same as pressure release pipe? I wish it was easy like that but no - toilet is an old-type, lever operated, neither over-flow nor any leakage noticed (see image). Water level is steady...

will do tonight and report back

~ 4in up from the valve, then bends by 90 deg (~1-2 in) + through the wall thickness (~14 in) = 19-20in in total

Got it, thanks. But it's only for garden tap anyway (not related to the leakage problem)

There are still two worrying facts: 1. The boiler always switches on (if it was off before) immediately when I open stop-cock. 2. The pressure on the boiler drops from 1.1 to 0.7 bar (near red sector - meaning pressure too low) within ~10 sec and stays there until the boiler keeps on...

Apparently this valve does nothing. It rotates unlimitedly in both directions. I was hoping this pipe goes to bathroom (and leaks somewhere on the way) and the valve could close it. However, the pipe above the valve (see the picture) actually goes into and supposedly through the wall to the...

yeh I got it, please see post above.

Got it. No, that hasn't been closed during testing, but that only supllies the kitchen sink I believe. Will re-do the testing with that valve closed tonight and report, thanks.

From 'Items' there are only: 1. washing machine (WM) 2. dish washer (DW) 3. bathroom (tub, sink & electric shower) 4. radiators main house water feed (inlet) from kitchen. 1. and 2. - will test over weekend (Tricky to pull out from cupboards) 3. no ISO valves fitted. 4. supposed to...

15 l/h is not an estimate from usage figures etc., it's a real measurement directly on the meter. The way I did it is I stopped using any water for 1 hour (even switched the boiler off) and took readings in the beginning and the end - the difference was 15 liters. (I have electronic meter that...

I will try that, but I doubt it's the reason - the toilet looks pretty quiet and steady - no noise, no bubbles, no ripples - no anything. That's not that small - I could easily spot one drop per sec, and 1 teaspoon/sec is a lot to me.

pic showing the meter & the valves

Hi Andy, 1. Correct. 2. Correct. Thanks P.S. I doubt it's important but just for the record - we have two stop cocks: old brass one (many turns to close/open; was at the property when we moved in) and a new one (one 90 degree turn to close or open) fitted by our builder. All the...