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Please could you tell me where I can obtain a DN70 (70mm) to 40mm adapter? It is for an overflow so it will not be under pressure. The only ones I can find are rubber adapters 60mm OD to 40mm ID. Thanks in anticipation

I'm building myself a house and I've reached the stage of installing the the first floor decking. The house is weather-tight and I intend to use 2400x600 sheets of 22mm thick moisture resistant T&G chipboard. Someone told me that in addition to nailing the sheets down I should also glue all the...

I'm building a 4-bed house that is going to have underfloor heating on the ground floor, radiators on the first floor and a pressurised DHW system. I would also like to use two sources of heat, a gas boiler and a wood burning stove connected to two indirect coils in an unvented cylinder but...

Hi, I've just completed a minor plumbing repair that was nothing to do with showers but involved turning off the main stopcock. Before I turned the stopcock off, the lady mentioned that the shower head attached to the Triton T80i in the main bathroom was leaking and asked me to look at it...

Hi, About 4 years ago I had a detached garage built on a concrete raft. The rainwater from the roof runs into a soakaway that I built about 1.5m away from the raft. The Building Inspector says it is too close and that it should be at least 3m away but it is impractical to move it because it...

I've been asked to convert a downstairs bathroom into a study! This involves removing a very expensive looking 4-piece bathroom suite (dark red) and a shower cubicle complete with mixer shower. The walls are tiled from floor to ceiling and instead of taking the tiles off the walls, I wondered if...

Someone has asked me to replace the domestic hot water header tank in their loft because it looks like it is made of asbestos (surely its not) and it's started to de-laminate. The house was built in 1948 and I think the tank is original. The outlet pipe is underneath on the bottom of the tank...

I have one spare way on a MEM Memera 3 CU fitted with cartridge fuses (circa 1990) that I want to use to feed an MCB/RCD shower unit. My local electrical wholesaler sold me a 40A MCB (Eaton ALB401) but it doesn't fit. What I need is either a 40A fuse carrier and fuse or a 40A plug-in MCB. The...

I want to connect an ornamental garden water feature to the lighting circuit in a garden shed. It has to be the lighting circuit because that's all there is, run from a 6A MCB (without RCD protection) from the house CU. The water feature draws milliamps so I intend to put a 1A fuse in an FCU. I...

Last week I was asked to do a few jobs at a Day Care Home. One of the jobs was to look at why they can only get cold, or at the very best tepid, water from some of the hot taps. The problem taps are on 4 washbasins and a bath which I discovered are all fitted with adjustable TMVs. I think they...

Hi, Someone has asked me to move a radiator and fit a TRV. Actually they've asked me to fit a new radiator the other side of where the pipes come out of the skirting board, but that's not the problem. The problem is that the existing radiator has a single valve arrangement (non-TRV) at one...

I know how an RCD works (at least I thought I did); a toroid with 3 windings, one connected to the live, one to the neutral and the other, which detects an imbalance between the first two, connected to the tripping circuit. My question is, if the RCD works purely on the principle of imbalance...

About 2 months ago I installed 2 sets of low voltage downlights in 2 completely seperate locations. One set consists of 9 transformers and lights and the other set has 6 transformers and lights. i.e. Each light has its own individual transformer. I purchased the transformers (and lights/lamps)...

I have a problem with a heating system. The central heating works OK but only when the hot water is also on. When the hot water is off, the pump stops. Somebody else has changed the programmer unit and the wall thermostat but this didn't fix the problem. I think the problem is something to do...