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I’m adding a radiator to the last one on the system. Room apparently needs 7261 BTU (according to an online calculator) First question: is it OK to put in bigger rads than might be strictly required? I could put in a 600x1600 Type 21 (7330 BTU) or a 600x1400 Type 22 (8165 BTU) However those...

Oops. posted twice. (Is there a delete button?)

Tiling a pond! Turtle pond. Greenhouse with concrete floor. I’ve built up four sides, one of them against the the existing brick wall at one end, using breeze blocks. Intended lining it. Now wondering if I could tile it instead, and seal with waterproof (swimming pool quality) grout. Would this...

Partly out of interest; partly to preserve a little bit of the original (although I take your point that unless I use heritage materials, it wouldn't be a conservation repair anyway...)

OK. Thanks. It's a Grade 2 Listed building, although it's had some bad and some sad things done to it (mostly before it was listed) - including to some other ceilings. But I guess if I use plasterboard, no-one but me would know that the porch ceiling is no longer original...

Well, that gets to the heart of the question! So, not possible, or not advisable, then?

Early Victorian house. A section of a lath and plaster porch ceiling has collapsed due to water ingress. The source of the leak was identified and dealt with last year, but large cracks appeared in the ceiling a few months ago, and sagging, and finally the collapse of an area about 3'x2'. (The...

The main problem with that is the increasing rarity of wire coat hangers....

Sorry to revive an old thread, but similar concern for a recently fitted rcd fcu brought me to this thread. My unit has a red indicator showing, but power is still going to the sockets it serves. Yet like the OPs, mine has printed on it, “If red stays visible DO NOT USE”. I’ve just realised...

(If I'd been sure of the best course of action I wouldn't have come on here in the first place!) Actually I did follow some of the suggestions on here, and did replace the pipe that included the leaking iso valve with a new continuous piece. Thanks to all who advised.

Yes, limited experience, so didn't want to risk making things worse when I knew I couldn't get hold of our heating engineer over the holiday period. And in fact all I was asking for initially was any recommendations of that might temporarily stem the flow. Obviously there were none, although...

Yup. Made a mistake there.

Thanks for that. OK, I'll admit I was wrong about where the leak was coming from, but maybe a photo would have only shown what I, (and the rest of my family) was seeing: a drip from the left and side of the ISO valve (which was really coming from the screw control and running down the slope of...

Apperciate the request for a photo, but not sure it would tell you much more than I can with words. Control screw in centre of ISO valve is leaking (quite profusely now).

YES. The screw in the centre of the ISO valve. Its a gravity fed system, so no chance to release the pressure from the system in that way as kindly suggested. Should that screw be able to go round and round, which this one does? I thought they were supposed to be 1/4 turn jobs? My original...

OK. Not leaking from the nut on the rad side...it's the screw that controls the isolating valve that's leaking. Turning it to off slightly minimises the flow. Flow being a better word than drip.

Yes. isolators on the feed and return. End of the isolator nearest to the radiator on the feed pipe is leaking. Gravity fed system. TRV on the feed end. Normal valve on the other end. I'll try to do photos. Thanks for all advice received so far.

Although...if the TRV is working, and I close off the other end, I shouldn't need to empty the radiator as there'd only be the water in the pipe between the TRV and the leaking nut on the isolator valve? or have I misunderstood something? Any way, I'll look at it in the morning! (And try a big...

That's really helpful. Thank you!

Sorry, can't manage that at the moment. Its definitely leaking from the nut on the radiator side of the isolation valve.