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I have used 20+ time delay on off / relay switches from GEYA and found them all ok. Sometimes the instructions have been a little hard to understand but maybe that's just me.

Yours is borderline unrecognisable as a quim. I attribute this to ‘costal erosion’.

AKA Quim Eroder

I genuinely wish I knew WTF you just said, but it’s way above my pay-grade lol. I will continue to peruse and hope to be unwittingly educated (somehow); a bit like how boiling water has to accept being infused by a teabag. “Continue” ☺️

The BAL adhesive mentioned is probably the rubber crumb AF Max. People think its a new concept but it was around many years ago. Your tiler will love you if you go with that as it's a lot lighter to use and handle.

Not really, just needs someone to bite down and make the 1st fix robust enough to adopt whatever is to be fitted downstream. I have had to do this on the current job; now a few days into being ghosted by one ‘Daikin specialist’….. Quite a few one-trick ponies out there, sadly. Two rounds of being passed from pillar to post after calling Daikin UK design / support, then sent back through the process again by further clueless fcukwits, for someone to lift the phone, say fcuk all, and then hang up on me. Took all my might to not bite the corner off my iPhone, and wrecked my mojo for the rest of the (then more) difficult day. (expletive deleted) Anyhoo. I am currently sailing along on my own compass, and have put pipework in that will suit all scenarios, conduits vs cables (so whatever communications are needed, these can be pulled A-B with ease, downstream of plaster-boarding and plastering), and the world will continue to spin without a sweat being broken. All pipework insulated and joints and seams taped with neoprene self adhesive ‘insulation tape’, and no stone left unturned. I decided to raise the topic of hydronic air handling via a duct heater, and the client is happy to concur; I will just spur off the flow and return from the nearest FCU (22mm F&R), leave a pair of pipes in the MVHR ‘cupboard’ in abeyance, and have the option to integrate this later (if so required (and they’re not too broke to do so 🙃)). Then, on to solving the next problem.

Stairway to Devon

FCU per room much simpler. Have DMd you the contact. But this was through an installer…

This Geya unit seems to be a 3 position switch. They seem very little money. Anyone got anything to say about quality or UK standards? GYHO8 Transfer Switch 1P

I've got 2 of those changeover switches, one in each of the main house consumer units. They let either of the CUs be fed from the grid or the backup output from the inverter. One is normally fed from the grid, the other normally fed from the inverter backup output. I'm not aware of any regs that prevent that configuration but it's such a niche that I'm not sure those producing the regs will have detailed if and how they should be use??

I ran condensate drains but they're always dry because I run it over dew point. I did run it (much) colder for a season, but the condensation on all the plumbing gubbins was too much. Pipes are easy to insulate, but circulation pumps, 3 port valves, magfilter, flow sensor, etc not so much. It quickly started to look a real mess. Adding a second (much larger) FCU greatly reduced the need to run at such low flow temp

Yes. (It already is, not going to be on grid for half a year)

Progress has been interesting . qwen coder is a bit spazzy at writing code from prompts - too many errors . We have a pipeline where automatically the error goes to derpseek that rewrites the prompt for coder again ! But at this stage ChatGPT reins king ; it defines and (expletive deleted) me ! Makes me test every single step . It does the code as it’s small snippets and documents them a bit too much ! But it’s a rock solid implementation. Proper SE stuff ! . So structure / framework at this stage is complete . Added the uma8 multi microphone array . All good . In the next few days expect the engineer dashboard to show wake word recognised , stt . At that point things get interesting . It’s going to be a massive project in complexity and I’m in awe what one person can achieve with llm . Will swap back to deep seek and a better coder model when I get something with more ram - which could be some wait ; though I do smell an m5 ultra flip opportunity…. 😊

I never came across the slightest hint of corruption. But maybe I don't spot any hints, not thinking that way myself. (I'm forever seeing social media comments blaming everything on 'brown envelopes", presumably from people who would if they could.) However, I have come across ignorance and misplaced self- importance esp in LA inspectors.* It surprises me when I occasionally see on here that a BCO has given a self- builder advice, as they do spot checks, not thorough inspections. My guess re the now required registration is that some authorities or businesses were delegating to juniors or other unqualified staff, so that had to stop. If there was any criticism in Grenfell et al, then I've missed it. * one such young LA chap told me he wasn't accepting block paving in an industrial yard. I asked him why and he blustered some nonsense. So I told him I'd get an Engineer's letter to him. He responded that I needn't bother as they'll write anything they are asked for. I did a how dare you rant, but wished I could have got him sacked. Readers , I was that Engineer but was probably dressed other than he expected. So yes, there need to be standards for a BCO, and I hope they have risen.

I would just add your manifold, leave the pipe tails long and mount manifold on a convenient place. Leave pressurised and you can see the pipe integrity via a pressure gauge pressure test with water glycol or air.

Oh and to add - for every non-compliant detail that was missed by a BCO there was an incompetent builder or designer that actually did the work!

I'm not sure there was widespread dishonesty rather than widespread variation in expertise. The registration process is meant to try and drive up standards and in reaction to Grenfell (and be honest some of this may be political with a small p) something needed to be seen to be done.

So is this an inverter that will run in Island mode, most don't

In the end I bought a thermal camera off Amazon, took some photos and sent them in and they signed it off. Then after all my stress I remortgaged on to a standard mortgage and nobody even bothered to look at the warranty. Perhaps I will need it in the future when we remortgage again! No plans to sell.

It depends, is the only answer right now. If i can get away with grading it to fall towards soil then it will stay as it is. If it were not a planning condition to be SUD's compliant i would leave it as it is. Worst case, if i have to dig up what is there today then all bets are off.

What if any surface layer will the drive have? If that will be impermeable anyway (e.g. traditional tarmac) then there's no point changing to a permeable sub base. Can the drive be laid to a slight fall, such that run off is naturally towards a permeable area (soil) on your own property? Looks like 100m2 of drive needs 20m2 of permeable run off area. Otherwise you're into needing to construct some sort of drainage/soakaway. I'd work out how much MOT type 3 you'd need as a replacement sub base to at least see where you are on cost and consider how that compares to any alternative approaches. @Mr Punter you're probably right and no-one may check, but if they do then costs to redo a finished drive later will be a lot higher than cost of redoing just the sub base now.

Hello. My electrician was questioning the regs regarding changeover switches as he has not fitted one to an inverter before. I intend to have two changeover switches, one to connect my grid DB to the load output of the inverter in the case of a long term power cut and one to connect the load DB to the grid in case of an inverter failure. I know others on here have done exactly this so I thought I would ask for recommendations as to what make/model of switch people feel is suitable. My inverter is a 10k single phase and the supply breakers will most likely be rated at 63 amp. The electrician has always fitted large 3 position changeovers for large generator installations. His concern is whether there is a regulation that the changeover switch should have an off position, in other words a 3 position switch. I was considering something that would be along the lines of the image below, din mounted in a neat box. rated at 125a. However this unit is £17 + vat which he thought sounded cheap and nasty. It also seems to be a one or other position, not and on - off -on. Does anybody know if there is any reg or code of practice that prohibits this type of changeover for what I want to do? Any particular units I should be looking at?

Nick, we've abandoned the multi room option, it's just far too difficult to design. Just spoken to our installer and he has said even Panasonic acknowledge that the systems just aren't quote there yet in terms of design and individual room control. All needs more thought by their techs to get a system that people can actually install without loosing their sanity!

Sorry I've confused things! The ducts are in relation to a multi room fcu. Abandoned now....

If it is rubble filled why not claim it is compliant (if asked) and see where you stand. If you top it off with gravel or permeable block paving I can't see questions being raised. I have had a SUDs condition and it was never checked.