Nickfromwales

Eh? These are bomb and bullet-proof! I've been using (therefore trusting) them for nearly 35 year You are perfectly fine using the 'push-fit' 110mm stuff, so relax a bit Gives you a bit of flexibility and wiggle-room vs the concrete solidness, and lack of forgiveness, of solvent weld.

This is exactly what I have just designed for one of my current clients. Sizeable property, >400m2, so 2 units needed here. Beer is helping sooth the brain ache, after beginning the install today.

Yup. Or just a regular double socket connector needing zero glue?

Or this... https://www.screwfix.com/p/floplast-solvent-weld-3-boss-double-socket-short-pipe-grey-110mm/17138 ....if you need to glue it and push it down from above.

Something like this? https://www.screwfix.com/p/floplast-push-fit-3-boss-single-socket-pipe-grey-110mm/18246?msclkid=842481fd35ec11702792ebfa4ba05dd8&utm_source=bing&utm_medium=cpc&utm_campaign=Bing_UK_Shopping_PMax_Heating %26 Plumbing&utm_term=2331720565763883&utm_content=Heating %26 Plumbing&gclid=842481fd35ec11702792ebfa4ba05dd8&gclsrc=3p.ds&gad_source=7&gad_campaignid=22478593832

Good and bad (sad) news….. If you’re really stuck, my sparky travels. PM me if you need some interim support, or the job finishing etc. SLC looks good from here, and it is your floor layer who should now survey and advise; if it’s pretty good then maybe just a rub with a carborundum block may suffice, vs additional feathering with another compound.

Perfectly acceptable. Carry on. Run 50mm waste for the shower for that distance, and 40mm for the basin; reduce that to 32mm on the outlet of the last 40mm bend. Discharge will be much better than using 32mm to the basin from the stack 👌

The fitters should be using (should have used) industry recognised practices for measuring moisture, not a £20 B&Q tester. Likelihood is that they’d never be employed if they tell every client that the slab isn’t dry enough to lay……so maybe an incentive exists to do the most rudimentary test possible.

I specified a ‘sump’ in the space under the 5x15m pool, in the basement, to house all the ‘pool paraphernalia”, so if anything failed the entire contents of the pool could be evacuated quickly. I combined that with the drainage system from the basement, and did the pump set in triplicate for redundancy. Gave me and the SE a headache or 3! I planned to use UFH pipes in the base and lower sides of the pool walls, to minimise the impact of the pool plant space needed. Was an interesting idea, and was received well, but apparently not very common in ‘usual’ pool builds; seemed ideal for one done in ICF though. If you need a very good ICF guy who’s fluent with pools and basements etc, send me a PM. 👍

It’s just a pair of ducts, and always better to split if a bit of perseverance is all that's required. If not: https://www.fastlec.co.uk/zehnder-2x160mm-right-hand-external-wall-grille?utm_campaign=smartsh&gad_source=1&gad_campaignid=17190426677&gbraid=0AAAAAD8Nz9fu_eyDURmwcHW6P3dpk3hDY&gclid=Cj0KCQjwiJvQBhCYARIsAMjts3Imbzib3ncRTTalOOZ3KgS2mHzKVr_TKBRUixo1vAQCZhQOe8lJffUaAoctEALw_wcB Expensive but good. You can buy RAL coloured spray paint to get it colour matched if necessary.

Can you give a general location, so folk here can recommend someone close to you

I’ve fitted a few of these, very happy with them. https://www.brinkhrv.com/sky300

It’s a <£200 day out for the training and subsequent “qualification”. I have been meaning to do it, but life continues to distract me.

This will be the best £4k you ever spend sir.... Please do. I've done a few pools for clients over the years, next one is outdoors in ICF, and am ever curious (and keen to brush up where any opportunity presents itself).

The Panasonic’s are up on a factory plinth anyways. I set these on blocks if the client specifically asks, also allows the typical concrete slab to go bye bye, much easier on the eye with a bit of nice landscaping around.

Listen to your SE! Anything short of their current proposal would be what worried me here, plus they won’t put even the hairs of their crown jewels onto the chopping block of assumption, why would / should they? This one is absolutely fundamental, as the downward and outward forces at play here are significant to say the least. If this is done even slightly poorly you risk losing the integrity of the house you’re putting it into. Best not to tar them with the same brush…..

The tail doesn’t wag the dog though 🙃.

You are a rare gem in the industry. Normally the blame avoiding is staggering, and the ones levying charges for rectifying self made feck-ups is probably the most intolerable behaviour I have witnessed.

Who fitted them incorrectly? Get them to do it!?

Fitted a good few Panasonics, and I just bolt them down to the concrete and hard plumb with copper. As above, you’ve got to stick your head in front of it to prove it’s running, but the caveat is that you design it to be relaxed, not running flat out. Zero vibration or notable running sounds / nuisance. Very impressed with them for the money, and they do cooling out of the box Tres bien!

Amen reverend

Rubi’s own discs are a wise investment. Speak to your local tile shop staff for types and direct recommendations.

In your own words, “look harder”

MVHR has centralised filtration at the unit. Cleaning or replacing the filters can be done faster than making a cup of tea from scratch. Multiple units in different locations adds to this ‘problem’, as anything that air flows through will attract dust that needs removing, so that is at every trickle vent, plus the fan filters, worse if the fan is in an attic space. MVHR is the better solution, afaic, because of the ease of (self) maintenance and the heat recovery.

Yup. Same as the iBox. 👍👍. Happy days.