copper

Hoping for some advice about something I just noticed on a few of our radiators. Some of the pipes have what appears to be oxidisation (I'm guessing based on the turquoise colour) although there are no obvious leaks. The turquoise residue flakes off when touched but can't be totally cleaned...

It's been many years since I last sorted a bathroom but, sadly, the bullet must be bitten. Obviously, in the interim it's been realised that the faffing about with custom built boxing-in option is laughable, and a versatile off-the-shelf modular option for hiding the pipework away has become...

According to this page and TLC's printed brochure, the 50M and 100M cuts of the internal UTP CAT5e cable are CCA over 0.5mm Aluminium and are not pure copper. Despite reading online that CCA CAT5e cable is non compliment, I can't find anything in the TIA-EIA-568-B.2 standard what says solid...

Evening all, I have taken the decision to change my bedroom radiator, its only a single type 11 currently and just is not producing enough heat. I think imp going to op for the type 21 not 22 as the larger one will be overkill and stick out from the wall 107mm as its a Barlow from screw-fix...

What sort of fitting is shown in my photo below and is it maintenance free in the sense that it can be buried behind plaster? It certainly does not look like your typical soldered joint or compression fitting. Mine also freely rotates. Fitting before radiator valve: Type of fitting? by eveares...

Complex setup- short version, I've put the pipework in for 2 radiators 'cos I wanted to hide the pipework in ceiling and stud walls, there's no boiler fitted and no rads fitted to the ends of the pipework yet (got to finish insulating the ceiling & let BCO have a skeg at it before I board and...