marjon said:

Ok must have missed the first floor bit. But regardless your pipes are not ideal for thermo syphon anyway, need large bore.
As much as I say and agree gate valve are carp the 1s on you pump should be good enough to remove the body of the pump. As Grundfos (colour gives it away) keep the same body size for most normal sized heating pumps it’s also an easy swap.
I won’t comment on why you have so much pipe size reduction cos I am not a pro, but I wouldn’t do it.

Even though we can’t get them here if I need to get into our pump I have ball valves to isolate and only lose about half a litre, and bleeding out after is simple.
Did I mention I wasn’t a plumberer but I have a welding helmet, auto 1 it is too

J

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Stanleysteamer said:

A lot of the pipework is 22 mm going down to 15 mm I think for the tails to the rads, but not sure, can't quite remember.
The house is a Swedish designed one, timber framed. W and her ex bought it brand new. It was one of the first, sort of a show house as there are three types on the estate. The Swedes brought them over from Swedeland and built them to show the Brit trades how to do it, and I dunno who the plumbers were, but it was the original plumbers who fitted the CH. TBH it has worked brilliantly up to now, which makes me think it can't be anything too dramatic that has gone wrong.

(I too have an auto welding helmet!)

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Stanleysteamer said:

This bullet has got to be bitted, so thanks for the info.
Surprisingly maybe, I have posted on ere from the Alcatel but only rarely, usually when travelling, through the hotel's wifi.
Wot is the advantage of a phone being Sim free? I really, really prefer pay as you go as I use my mobile SOOOO rarely,
You can call me cheap but I take pics on my DSLR and only use my mobile as a back up or for safety when on the road.
Or if I have to when a frog delivery person needs to contact me, and then I have to use a French number anyway. I only got a smart mobile when Covid was big and you had to constantly prove, through the NHS app, that your jabs were up to date. Which is why I got a secondhand one.
I'd like one that takes two Sims so I could have a Frog one and a Brit one in it, like my Tesco mobile PAYG which is so cheap and reliable.
W has promised to buy me a new lappy up to what I think is a large sum of dosh for my Xmas and 70th burfday pressies, I will have to see if she'll "wear" the idea of a cheaper one and a mobile.
We'll see!

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