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Thanks for the thoughts. Flow rate was set some time ago. I shut it back to around 1 last night, and there is now an appreciable difference between flow and return pipes at the manifold - I don't have the equipment to measure it. However the room is colder, so guess I may have overdone it!

I have a Polypipe wet UFH system which heats a large new extension (5 circuits off manifold) and an old study where the floor was relaid (2 circuits off manifold) with 100mm of insulation over concrete and under the screed. It works well in the extension, but will not heat the study. The...

Thanks for all the replies. Yes, you can turn the temperature up or down manually, although it is not a very easy interface. The programmer only controls that room, and turning the controller off does turn off the output. The stat is the PBPRP at www.ufch.com The issue we have is that...

We have a polypipe wet ufh system with PBPRP controller which works reasonably well, over a period of time learning how early it needs to call for heat in order to reach the comfort temp through the ITCS feature. The problem comes when we light a wood burner in the room. Despite following...

Thanks. It is a pretty useful system as it saves water and the wait, but only when you want hot water, otherwise it simply circulates it round the system gradually cooling it down. I thought there would be some sort of relay etc that could be used - I'll leave that to the electrician -...

We have a pump on our hot water system to deliver hot water immediately with no delay (long pipe runs). Currently it works off the timer when the water is heating. While altering the kitchen I want to wire it so that there is a switch (plus neon) in the kitchen to put it on while washing up...

Thanks, I'll try that. To be fair, there seems to be plenty of tension in the springs themselves, just that the arm that you set and swings over to dispatch the mouse doesn't seem to be spring loaded anymore.

I have several wooden Little Nipper mouse traps which were used successfully last winter. Having got them out again I find that the springs are suddenly weakened so that they won't set, although they were fine when put away. I appreciate they only cost a quid or so, and am happy to replace if...

We have wet u/f heating in a new extension, with Polypipe PBPRP programmable room thermostats. Apart from the fact these are a nightmare to programme, I wondered if anyone had any thoughts on the most efficient way to set them? We want warmth morning and evening: the Optimum Start feature...

Thanks but the PV doesn't have a flange for a fibre washer - it's just a case of screwing the valve on as far as it will go, hence the need for plenty of gobba!

I have a ball valve fitted to an expansion vessel on a cold water system - usual pressure is about 4 bar. Despite several attempts using ever more PTFE and or Jet Blue, it continues to weep at the thread. Can anyone suggest a remedy - should I stick to loads of one, a combination, or what...

I have a 25mm MDPE pipe entering house from rainwater harvesting system. I need to put an elbow on it, then run into a filter with 1" BSP taper threads (female) and from there to a control unit with 1" BSP fittings. Question is, what fittings and pipe can I use internally? Plastic MDPE...

Just opened door of Zanussi jet stream washer dryer after a wash (not dried) to find everything covered in a pale grey dust which looks suspiciously like disintegrated door rubber. There is loads of it, much stuck in the creases of the seal. But the seal itself looks in pretty good condition...

I am building a single storey lean to type extension and want to put a wood burner in it with a twin wall s/s flue but am having extreme difficulty making sense of the building regs concerning this. They seem to indicate that as long as it is over 2.3m from the neighbouring buildings it needs...

I am putting in a woodburner in an existing fireplace which I have opened up back to the original brick opening. The constructional hearth is soft brick bedded in sand/weak mortar, and is very damp, and I am going to replace this with concrete. It is an old house (1800) with no DPC, and I...

Thanks - hadn't realised thermostat was inside a sealed tube. Can't wait to wrestle with removing the old element..... better get reading for useful advice.

Just replaced my top fitting immersion thermostat as old one had failed - see earlier post - thanks for the help b****r of a job, but got it done. There is now a slow but steady leak from round where the thermostat fits into the element. There doesn't seem to be any washer/o ring/seal etc...

Thanks, that makes sense - easier to drain and shift plastic tank not under pressure than copper one - should then be able to slide it sideways, drill shelf and gain enough clearance.

Immersion thermostat seems to have failed - tank boiling water up. Purchased a new thermostat (for top fitting single element immersion), removed wiring and loosened old thermostat. Then the problem... Immersion tank is raised off ground, and too near cold water cistern above it to be able...

Thanks for your help... mission accomplished!