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Is the thread size of nuts on 15mm compression fittings (specifically isolation valves) in the UK standardised, or does it vary with manufacturer?

I have a non-vented system with a combi boiler. A downstairs rad has its flow and return pipes in a drop-down loop connected to upstairs plumbing. Both pipes have isolation valves near the rad, but one valve is weeping at the spindle. I would like to replace this valve without draining down the...

I have seen various posts saying that isolation/service valves sometimes weep after use. Are lever-operated shut-off valves for a domestic mains supply any less likely to weep/leak after use? Both types appear to be ball valves, which presumably have similar seals.

Any recommendations for an effective solvent to clean Bostik flash-band goo off of tools?

Tinsel seems to be missing from the usual local stores this year. Is this an eco non-plastic initiative, or ........?

Given the choice of either BG or LAP brand switched twin 13A socket, which would offer the better reliability in your experience?

I have a Hive-1 single-channel thermostat working happily in standalone mode (no app). 1) Is the programmed event schedule retained if the batteries are removed? 2) When batteries are replaced, does the thermostat radio link need to be re-paired with the boiler controller, or is the pairing...

After a recent update to version 109.0 (64-bit) of Firefox I find that I can't save more than 9 bookmarks on the Bookmarks Toolbar, or more than 9 in 'Other bookmarks' also. Is this a new feature to encourage users to pay a subscription? Anyone else experienced this? Any way round the limits?

I'm getting occasional ghost rings on my wireless doorbell, day or night, but I'm not sure what is triggering them. I have two different brands of bell, but both suffer from these ghost rings. The bell/bell-push use the 433MHz band (as do various garage door openers and other remotes, so one of...

Or more accurately, how many does it take to repair a failed street lamp? A month ago I reported to the local Council a failed street lamp close to my house. Yesterday a van pulled up with four occupants; three men and a woman. One man wielded tools and tinkered with something at the base of the...

My in-house mains stop-cock (1980s vintage) is very stiff to operate. What is a safe lubricant to use on the shaft? I don't know if the packing gland has a grease/hemp packing or a rubber seal and I don't want to risk rotting any rubber seal. I have some graphited penetrating oil, car engine oil...

Screwfix advert for this particular stapler doesn't specify staple width and doesn't come with any staples. Anyone here know if Arrow or Stanley T50 staples will fit?

I recently moved house and inherited a kitchen with an integrated freezer. The freezer compressor noise was hardly noticeable during the day, but at night could be heard as an annoying hum in the bedroom above the kitchen. The noise was being conducted via the freezer cabinet, its attachments to...

I'm planning on making a cupboard door by routing a groove in some pine or larch for the frame around an mdf panel made up of left-over laminate flooring planks. Are differences in expansion coefficient (either thermal or moisture-dependent) between the different materials likely to be a...

I need to remove the flush buttons (unknown flush brand) from the lid of my toilet cistern but I'm not sure how to detach the blue section from the threaded shank B. It doesn't simply unscrew or pull off with moderate force. There is no release catch at either end C or D, but it looks as...

I've inherited a CH system with a Hive thermostat (Version 1) but no working Hive hub. The stat operates in stand-alone mode and I'm happy with this. On Sunday the stat clock correctly updated itself to BST, but I can't find any instructions in the manual for adjusting the clock time if I ever...

In a typical open-vented system, with the boiler downstairs and the F&E tank in the loft, the boiler pressure will naturally be about 0.5bar. Why, in a sealed system, is it deemed necessary to set the cold pressure higher, typically at about 1.5bar?

My car recently passed all emissions tests apart from the lambda reading. λ upper limit for a pass was 1.030 and the reading for my car was apparently 1.031. Only 1 part in over 1000 over the limit !!! Can the test centre's instruments really be that accurate (0.1%)?

In a house I've just moved to I have an under-counter 13A socket on a spur fed via an above-counter isolator switch from, I believe, an upstairs ring. The previous occupier of the house had a washing-machine plugged into this socket. If I power my portable drill from this socket the solitary RCD...

I have a Fridgemaster built-in under-counter freezer Model MTBZ102NG. Even when the thermostat knob is set to '0', the freezer does not switch off and there is no 'click' from the stat switch at/near that '0' point (as there presumably should be). I have tried twiddling the adjustment screw a...