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My PUMA 80E combi seems to be losing pressure (about 1 bar per 24hr). I have had a good look around boiler no obvious leaks but it needs topping up from the filling loop once a day to mantain the pressure. Any ideas what might be causing this? All I can see might be a problem is the...

Just a quick question for the pros- Are overhead power cables either HV from pylons or usual domestic overhead supplies insulated like for instance twin and earth cable in your house. If not how come is it purley a case of the high current running through would destroy the insulation but...

What are thoughts on checking the tightness of terminals inside a CU. Do you pros do/recommend doing this on a regular basis? Only ask as I work for one of the emergency services attended a fire at a horse stables which initally was deemed suspicious but was traced, (by fire investigation...

Does anyone know of any product that will drill a 20-30mm diameter hole on a brick wall roughly 800mm deep? I've drilled with ease a hole with a 1000mm drill bit but the hole is too small for the cables I need to pull through. Thanks

I am looking to get my boiler, (Potterton Puma 80), replaced as it is starting to play up, I want one with a better flow rate and it is at least 11 years old. My question is, can I supply the boiler and get my CORGI to install or is the norm/favourable to let the CORGI Plumber supply and...

I have a detached concrete garage which is supplied, electrically, by 10mm swa on a 40 amp MCB from the house CU into the garage CU. The roof is supported by a steel frame which is exposed inside, is this classed as an extraneous conductive part, therefore would it be advised to bond this...

I've just upgraded my Main Bonding with 16mm cable from CU to earth block where it picks up the earth from the DNO cable. I then have 10mm earth cable from here and have bonded the gas, water mains, and heating pipes. In the kitchen I have bonded the sink and pipes for the tap. But after...

Hello, Just about to embark on a complete new bathroom refit and am installing shower cubicle/enclosure. Can someone tell me the correct way to tile around this? The bathroom is going to be completely gutted and tiled both floor and ceiling. Is it best to install the shower tray and tile...

Hi all, My shower has started to go intermitingly cold whilst in use and takes a long time to return to hot which is slightly annoying to say the least. This happens when no other taps/washing machine/dishwashers in the house are being used. Shower is fed from a Potterton Puma 80 Combi...

I have a split load Wylex CU in my garage with 60A 30MA RCD, 1x32amp MCB supplying garage ring main which is on RCD side, 1x6amp MCB for lighting not on RCD Side, 1X20amp MCB supplying single socket for Freezer again not on RCD. The whole install is supplied from house CU from a 40amp...

Was looking at the sticky to see what earthing arrangement I had and was just curious by the diagram for the TN-S, if someone could enlighten please, I see the live is protected by the main service fuse but the neutral just flows back normally, is the neutral still isolated when the main...