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Every few months our 24 year old slimline concealed cistern does not properly stop flushing. It continues flowing at a fast dribble. How can it do this when the volume of water flowing surely is insufficient to maintain a siphon? I suppose it means that the suction of the column of water exiting...

Southern Water in the Hampshire area seem to use a key for the stopcock that is completely different from any available in shops, etc. Where can I buy one as someone has stolen mine? I can't take a decent picture of it as it is down a long hole in the garden but will try to describe it. The top...

We have 2 Worcester GB162-65 gas boilers wired to run together on one pair of on/off wires on the 2 way green terminal block marked WA. Our boiler installer did not mark these wires as volt free so another electrician connected them to mains when doing some time clock mods. One boiler now only...

I help maintain a village hall which needs a new boiler. It was built 30-40 years ago with a single pipe system with one loop feeding all rads. There are about 6 large rads in several rooms all on one floor. The main iron pipe is about 3” diameter and mainly mounted exposed at skirting board...

I need a central heating programmer that has an input that makes the on time auto setting depending on outside or inside temperature or both. Can one be bought for <£200? There are complex ones for industrial buildings and offices but too expensive for me. I want to enter the time when the...

After 25 years the ridge tiles on my roof are quite loose in places. They are a grey cement/concrete type. Some can be just picked up as the mortar no longer ‘sticks’ them on. The mortar looks like lime and is quite soft/eroded in places but none falls out in chunks even if I do lift a tile...

A builder built me a low garden wall (600mm max) 4 years ago. This was backfilled with earth to within 20-50 mm of the top. The top was normal bricks on their edge. After a couple of years the tops of 50% of them were badly spalled by frost with 5mm or more flaked off. I tried a silicone...

4 years ago my mother’s cylinder, element and stat were changed. Last week she used it for the first time and after 5 or so minutes heating from stone cold (about 15C) it stopped working. I found the stat open circuit so changed it, but the same thing happened with the new one. I noticed that...

Due to very limited loft space I want to fit the smallest possible header tank on my new hot water system. It feeds the hot taps in a 4 bed house, but not the cold ones. Can I use an 4 gallon tank or is there some Bylaw or Regulation that demands a bigger one? Does the 4 gallons refer to the...