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By pass valve = pressure standard right angle adjustable pressure bypass valve, fitted between feed and return loop on the primary circuit. The short section of pipe accomodating this is 22mm. with a fully open gate valve on the inpput side, the pressure release valve on a 90 degree corner and a...

Hi there - I have read various posts on calculation of static pressure for various specific systems on the forum. However I am not sure I understand enough about the fundamental issue of static pressure to work out what the static pressure in my system is. As I understand it static pressure =...

Hi, I have an existing wooden floor which I will be keeping. I want to lay carpet over three quarters of the floor. Leaving a walkway down one side of the room on the wooden floor boards. The carpet area therefore will be raised. Edging the carpet: I once saw a brass quarter round strip...

I started poking around with a feeler blade and found that I could get it under a peice of the silicone sealant in the problem area. I must have failed to clean that peice properly when applying the sealant first time round. So it didn't adhere to the tray. It wasn't visible to the human eye...

apologies because I see there are allot of topics on the subject... I have a plastic (not PVC) tray on a concrete floor and I am 100% confident the pipework is ok - since there is no wet when I remove the inspection panel at the front of the shower. I have pressure tested the mixer by...

The water outlet on the hot tap in question was about 2" wide and about 1" front to back in a roughly rounded rectangular shape. the water litterally gushed out of the thing! I really do think it's unlikely that that volume could be fed through anything like as small as a 15mm pipe. I suspect...

I once stayed in hotel with a really huge bath. It filled in minutes and I recon must have had 22mm feed pipes to the taps. Where on earth does one find 22mm taps? For a fast bath fill? :wink: I might be talking rubbish - perhaps it had pumped 15mm taps??

Thanks for the response that's lovely.

The hot water pressure in the house is not brilliant and I was thinking about installing a pressurised hot water cylinder. Our mains pressure is stonking! The hot tank is fed by the header tank as usual. This would obviously be straight conversion – no problem. What makes it more tricky is...

Sadly not - it arrives from the neighbour at the back of the house in the cellar, from their cellar.

Yes - I wasn't clear enough. I need to check but I think the DPC (being an old house) has been injected about 2" above ground level and I think the floor boards are 2" above that. I can't raise the hole through the wall internally since that would involve an obvious pipe inside the bay window of...

Chaps - I want to put an outside tap on the front of my terrace house. There is a small garden there, so not into the street. Inside the house seems pretty obvious. pipework under the floor to the foundations. Through the foundations and underground to the tap site seems more complex. It's that...

Dear People, I noticed my tiles below the mixer and outlet “pushing”. After removal a leak was repaired. Now I have the lower half of one wall, minus the row of tiles behind the door, that is back to the brick – with a shower tray at the bottom. This question pertains to filling that area in...

Was planning to use the full weathershield system to repaint my fascia boards... however. I stripped the old paint off which had a flaking top coat. I found that the whole system was extremely thick 1-2mm and would not pull off using a scraper (like most will if your determined). Very hard...

Diagnosis 100% - thanks. Dipped in scalebreaker for 2 hours, refitted. Right as rain. Large flakes of deposits exited the primary side of plate HE during the rinsing process. So we can guarantee the system is full of crud and it'll clog again soon. I just cleaned it out as a temporary measure as...

Hi Tony, your memory is correct, this however is my partners boiler :) joy :( How would you in your professional experience suggest the most effective way to clean the plate HE. She does live in a hard water area. Becuase of this she does have an inline anti scale device fitted to the...

Hi folks, my better half has a Halstead Ace combi boiler. The unit was fitted along with a totally new heating system about three years ago. Since that time the thing has been less than reliable. It works fine for central heating but gives intermittent forms of hot water service. The most common...

I finished applying more insulation to the areas of the house that were a little lacking. Hate that job, so dusty and dirty. Bigburner – thanks so much for that I am seriously considering the Avantaplus now. D_Hailsham – thank you so much for your excellent response – (not that others...

Many thanks - one and all - all your time, suggestions end efforts (yes even the sarcastic ones) are appriciated in this post and many many other good ones I have read on this forum.

I balanced the system to give exactly 11 degrees drop so when it was at freezing point outside a few winters ago. But this is against a fanfare with an 80 flowstat as normal.