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Hi, Does anyone make a adaptor to convert an old ground floor soil connection for toilet into a dual 40mm waste connection? Something like the McAlpine DC2-BL only dual. I currently have just 110mm pipe sticking ~10mm out of floor which used to take a WC connector. I want to re-purpose this...

I've tried some fittings and agree with reds42. Solvent weld have very little play but ring-seal have more. My MkI eyeball reckons that 1 ring seal joint can maybe allow a 87.5 deg bend to stretch to 90deg, certainly I reckon 2 seal (each end of the bend) would allow this.

Building regs say nothing about bends, just length and fall. According to this the discharge rate for a full pipe, 10cm inside diameter, 25mm/m, is 13l/s. Full flush is 6l and takes about 3s I reckon. Peak flow say 3l/s so pipe is only quarter full at most. The important thing I reckon is to...

Length is about 4m to WC. Sink/bath/shower feed into soil too so only the first 1.5m is just WC hence the elbow shouldn't be a problem as lots of plain water flowing to wash stuff down, not just WC flushes.

Yes I meant horizontal with a fall. I'm aiming for 1:40 or 1.5deg. Well I've got outside vertical stack, with a socket at 87.5 deg in the vertical. So from drain pipe comes up vertical, following wall. Then it turns 90deg and runs parallel to wall in plan view with a 2.5deg up slope (i.e...

Hi, Is there a specified alignment tolerance for soil pipe. I've looked at various manufacturers sites but can't find anything. My problem is that I need a true 90deg bend for a horizontal run. Using a 87.5 deg bend gives me 1:23 so 2m run would be 87mm drift. I presume there must be a...

Hi, Anyone experienced with dry-fit kitchen units? These are full assembled kitchen unit but not glued so you can take them apart, do alterations and then final glue them together. The benefit is you can do the alteration with flat bits of wood. It mainly used when you have major cuts to do...

http://www.thomasarmstrong.co.uk/divisions/concrete-blocks-division/technical-guidance-sustainability/external-rendering/ recommends only traditional render which I'm told is because krend fails sometimes and they don't know why. Also, krend etc. will eventually look dirty and mouldy. You can...

Having gone through 10 bags of soundcoat what I've found is they vary in weight and you need to vary the water to match. In black plastic builders' tubs 50% of a bag weighs 13.6 - 13.9 kg. 50% of the specified water, 8.75 l seems right for the 13.9kg half bags but the mix comes out too thin...

Just thought I'd update this thread in case some on the future finds it useful. My method for mixing soundcoat uses 4 builder's tubs, hawk and float, and a bucket. The instructions say 17.5 l of water to a 25kg bag. I take a bag and split it into 2 builders tubs. I have a set of digital...

I'm installing a MHRV system. For that to work the house needs to be as airtight as possible, hence the parge coat.

Soundcoat is dual purpose product, for sound or parge. Or if you say to gyroc what do I use as parge coat they say use soundcoat. I'm going to dot and dab boards over it and will have continuous dabs top and bottom for secondary air tightness.

Gyproc seems to have very little info on how to apply this so what do peeps here think? It's 6mm thick so by eye or wood strips to get right thickness? It says 17.5 l of water to a bag, exact or does that needs adjusting for consistency? Mix and use or mix, wait, remix, use? On aerated...

I didn't explain it very well. The 2 new chambers are on opposite sides of the house and connect to other existing pipework. In one case if the new stack came out at right angles from the house the new chamber for that wouldn't be that far from the old chamber (about 1.8m centre to centre I...

Hi, I need to add 2 inspection chambers to my drains because of new connections. One is a new stack which I will probably run at 45 deg to existing drain for better flow and so I don't have 2 manholes almost next to each other. The other is an outlet from a downstairs bath room that turns 90...

Plaster is ~0.45 W/mK thermal conductivity celcon aerate concrete blocks are 0.15 W/mK so a lot lower conductivity, below the 0.5 W/mK required (and so is plaster but I guess that is near enough to be ok).

It won't be 102 because that says "with the cable touching the inner wall surface" i.e. back of the plasterboard. I did consider dabbing them it but method C say only applies to wall < 2km/W (>0.5 W/mK) and celcons are 0.15 W/mK.

Meter tails are in cavity until floor void so >>50mm. I need (want to) install a 100mA Time delay in meter box as this is TT. Safer to have some cut out I feel for long meter tails and that also should satisfy DNO and they have a short run to my RCD. 4DA1 is single core cable table so 2...

Hi, I've house remodelling underway and I'm looking at the electrics. The walls are planned to have 30mm thermaline basic (polystryene backed) plasterboard to improve the U value of the old walls and decrease the U of the new walls. I had thought that this would be method A, "enclosed in a...

That's presumably plasterboard with celotex or similar on the back. Boards with polystyrene on the back are half the price. Polystyrene is 0.040 W/mk where as celotex is 0.021 so you need ~20mm or polystyrene to match 10mm of celotex. Polystyrene isn't a vapour barrier I believe but if you...