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I need to change the central heating pump. The old one is a DAB 65/130 which unfortunately does not mean anything to me. Screwfix sell a reasonably priced pump which is 4.82 max delivery head. But I do not know how to relate one specification to the other. Can anyone advise ?

I hope someone will have experienced this problem before, and can advise. I need to tap into the flow and return of a straight run of 22 mm copper tubes with two simple "T" compression fittings. It is the middle of a run. The left sides feed a series of radiators, and even if I...

Well, I still use Boss White on all compression joints as a matter of course and good practice. It's belt and braces and what's the harm ? It is also a sign of reliability, leaving nothing to chance. The proof is simple - never any leaks from joints

I have an old property where it is difficult to conceal pipework. I want to add a radiator which will mean tee-ing into the existing 15mm flow and return pipes, but I want to use microbore copper tube (10 or 8 mm preferably) instead of 15mm, as it will be less visible running along the top of...