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Hi Again, Recently I asked help on above subject (see my inquiries about this here :- http://www.diynot.com/forums/viewtopic.php?p=787401#787401 After all your advices, eventually I found a young plumber in my area who quoted a very fair price, he undertook the work Mon 25th Feb &...

My CH syestem is: Potterton Kingfisher M F 60 boiler, with an “OSO” Unvented Water heater, Indirect 250 & new header tank, all installed in the garage. I have to change the rads & distribution to them by drop down pipes. Two plumbers said it will need to change the pressure vessel to...

OK, will explain to him, thanx nick

thanx "Gas4you", the 22mm F & R have already an auto air vent each sticking out. I will get the lad to go the difficult route, near the corners towrds the eves, to position the pipes behind the curtains. Would you recomend nowadays the pushfit joins or traditional soldering. nick

Thank you all again, Please give more detail on the sentence below. "..........consider 28mm to start the main circuit as you would need a tad more push on a drop system..........." The loft is clear, except a couple of walk ways to lift in the midle. There are two 22mm CH pipes...

So, from your saying manifolds are only for microbore pipes only? I did not intend to use microbore as they say they clog easily & are not as efficient as 15mm. Unfortunately the rads will not be under windows for curtains to hide them. Would it be a good idea to put them in those...

I have been unable in this area (W.London-S.Bucks) to get a plumber to undertake a drop down CH installation in my bangalwo, as the in concrete floor pipes are leaking BADLY. They all seem to avoid doing this work. The system is the original of a single pipe type, with a shut of valve only...

The CH header tank in about 2m above loft floor. If a ring of pipes is layed in the loft floor to distribute the downdrops to all the rooms below, will the 2m header be enough, or do you think I will have air geting in the pipes or something. If so, is there anything else I can do to...

Thanks all will see what the plumber sugests too. Nick

Thanx Gents, I will have to accept the cost as is really a catastrofic fault. Are all the bangalows saffering this after 30 yrs.? or am I just the unlucky one. Can you give me some clues &/or tips of how the "drop pipe" system chould be done. Nick

Good morning all, We suddenly noticed in our 1967 bungalow that a leak developed in the CH pipes burried in the concrete floor at two places, bedroom to corridor line. The carpets were found wet & so the concrete floor under them, and same wiith the near by lower walls. The CH header tank...