Onoff

And rightly so! For all that whinging and whining you've proved YOU CAN!

LIke our cats. SIts there, over fed and says "Oh, a rat, we need a cat!"

Man flu starting I think...

At least it shouldn't blow down...

Behave! Telephone & electric poles along with DG windows aren't original nor is plastic guttering, just fit the socket as suggested. Best take down and TV aerials too for originality! The linked drill from Screwfix, is that long enough?

In this photo, you can see a horizontal white 35mm OD pipe coming out from under the dormer, down low and teeing into the 11/2" run. That's from the upstairs ensuite basin. It can't be raised, it is where it is. If I add a 87.5o 110mm branch like @Nickfromwales says, in place of the 45o bend with the cap on: ...and put the ensuite shower waste into one of these: ...then all that will end up too high for the basin waste to tee into. Any suggestions? Cheers

Someone in the US mulling using his oil filled backup tank as a solar thermal store. Novel! https://simplysolar.supporttopics.com/post/are-there-any-reasons-i-should-not-use-and-oil-tank-with-oil-in-it-9503186?pid=1302000479

What I said. If that doesn't show then soak test other possible ingress points some way from the "problem" one.

Whilst that small window is out I'd do a hose test around the upstand.

Lidl often have some great deals on long drill bit sets. Think I've got a 450mm long set and a 1m long set. They both include a 20/22mm ideal for a bit of conduit thru the wall. One thing is that they might be an SDS Plus fitting. Ideally you want an SDS drill. As my Makita SDS needs surgery at the mo I bought a Lidl £29.99 SDS cheapo job. Proved it's worth a few times tbh. However...fit the front handle to your existing Bosch drill and you'd likely get thru those walls with one of these thru a knocked out hole in the back of the existing socket box: https://www.screwfix.com/p/straight-shank-masonry-dril-bit-20-x-400mm/3220V?

You might say that I was a DG window virgin until a little while ago. Fitted a couple as per this (sometimes off track) thread. First window I foamed in, second one done with Compriband and minimal foam. You might find something useful in there:

As for an external power socket ruining the quaint, quintessential Welsh cottage thing, it won't! You've already got the light on the eaves and something over the door. If that fussed plastic prime it and spray it white! WAY back my (blue) dpc up the wall and (green) vapour control layer over the face of the battens / Celotex was mentioned & I think was referred to as "belt & double braces". Smell free and draught free bathroom, can't say much more. Your smell WILL dissipate. One thing I did find helped here was to install soffit vents around the eaves where there were none. Easy fit with a 70mm hole saw. As well as venting the eaves it makes it bloody uncomfortable to vermin to live there. Reminds me that I still have one elevation on the house to do and 3 on the garage! https://www.toolstation.com/shop/p68777?

Just back from the gay very happy capital of the South East! More like the smack capital, even in the sunshine it's a shithole! Opened the fridge in the student house and all that was in there was 4 cans of cider! Dropped my boy off, his 3 mates were already there so we went shopping for him. When we came back all they had done was set up the Virgin router and were raving about the 90Mbps and climbing internet speed, & that as they've got 2 Occulus Rifts they can do 360deg tracking. FFS all 4 oblivious to the student totty walking up the road outside!

Doesn't MVHR itself "create" convection currents?

Just watched the video below which I thought really good. Surely I need a vertical "batten" to come off either by the window or over by the wc?

Bet you're looking forward to the plague of FLIES! A similar smell is only just dissipating here. Whilst writing this I've just had to swat one of the bastards that landed on my leg. I twatted it with the nearest thing to hand and then had to get up and Dettox my leg and the magazine. When I looked it was the Passive House magazine...if ever there was a sign...

You'll have done all three before I've even started, just can't get it together.

Did you hear "One for the road, lads!" and see a thermos?

Tough lads. Did you ever find out what happened to the glycol they drained off from the ST system?

Those drugs doing funny things again? WTF rip off reams of foil when no need, I meant just where it was touching etc. Too late now. The dead mouse smell will indeed be dead mouse. Either you've trapped them in there and they had another exit route within the room or now that you've sealed stuff up there's less air flow to clear such smells. Probably a combo of both. Bet you're wishing you'd sealed up all those "2mm gaps" you left! You don't need mortar on top of the foam. Just level it off as best as you can i.e. cut the gun foam to about 25mm thick and stick the pb down to it with the low exp. foam. Just thin lines of it, not effing great mountains of the stuff Screw the pb to the batten at the front,

Would mouse pi$$ work as an electrolyte?

The Celotex is covered both sides with aluminium foil. You don't want that touching bare copper due to potential electrolytic reaction, dissimilar metals and all that!

If you were being really OCD you'd aluminium foil tape over the infilled bits! Of course then you need to make sure the copper pipe doesn't contact the aluminium foil of the pir! To lose that timber support under the waste you could get a pipe clip? BTW, does it feel "warmer" in there?

Gearing up...the temporary, over bath "work bench/platform" , last seen for plastering has made a comeback:

Good shout. The brown soil fitting is I note a bit brittle but then it's been lying outside for a couple of years.