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We've laid a brick and sand floor in our new build. Still waiting for it to fully settle. Laid on concrete above full damp proof, so don't worry. So. The question is, we're going to seal it, but are trying to find a seal that won't make the bricks look wet. Anybody got any ideas, please?

Hi. I need to make a step. We have an interior brick floor, laid, not yet finished. In front of the door there's a concrete area which I want to cover in a wooden step. The area is 1680*360*25mm Initially I was thinking of ply, but really I guess the answer is hardwood. Am I likely to get a...

Hi. Wiring in a series of Fireangel smoke alarms using 3 core plus earth. The system wiring diagram says I connect L,N,I (grey wire to comminucate between different units), and Earth. There is a three wired connector cable which connects into the unit itself. By my logic, there's no issue with...

We're at the tail end of a self build, and in the last room to be completed are considering a smallish platform/mezzanine across half the room. The size of the platform will be 3220 across the centre of the room by 2200 deep. I have a 170x77 beam which I'm thinking of putting across the room...

OK. Here goes.... We have a newbuild, which has glulam beams along the ridges of the roof. Our builder, or rather our roof builder, decided that the 'best', (I suspect easiest) way to attach beams to the ridge was to cut them and join them to the SIDES of the ridge, like this. When the dry...

I'm in a new build. We have a sink and dishwasher venting into a 110 pipe. I have a reducer on the pipe to 40mm and am having trouble with a vacuum causing the sink to drain very slowly. So I've put in a vent pipe with a macalpine vp2w venta pipe on top of it. It's near as dammit vertical, but I...

Hi. Simple enough question. I have to put an electric underfloor mat in under a laminate floor. Question is, does it go under or over the underlay which goes under the laminate? Thanks

Hi. I have steels in my new build, vertical and horizontal, bolted together, and in an external wall. Within the oblong shapes in the steels are large windows. I want to box in the steels, in timber, to finish with the windows surrounded by a box construction. I have been told that I need to...

Just that, really. We have a newly plastered, new build bathroom, so plaster over plasterboard. In the past I've bought, and used, emulsion for kitchens and bathrooms. My question is, is this worth doing? Is it very different from 'ordinary' emulsion? Would/do professionals use this, or is it...

Hi. I have 2 identical wall light units: https://solislux.eu/en/product/wall-lamp-ceramic-sigma-mini-sl-0229/ They're nice looking units but come with no instructions at all as to wiring, and the bulb holders are not anything I recognise. They look like this: And the connection at the...

I have a number of salvaged pieces of tongue and grooved floor, mainly around 30cm in length, which I am planning to reconstitute into a floor. I'm planning to cut them all, either to the same lengths, or not, and basically lay a tongue and groove patchwork, glued at the cut ends, and in a...

Hi. I have the following: Toilet, sink and shower on ground floor to below floor waste 110mm from the toilet running up a corner in the ground floor to: toilet, sink and shower on the first floor. There is no roof vent, so I want to use an AAV on the first floor. Do I have to use one as big...

OK. Next in the ongoing saga of plumbing in our MVHR system. I have the following issue. We are installing an MVHR system, which has a low/med/high fan speed run by a remote, wired in switch. All fine, and I asked before how to wire it in, and am doing so with a .75mm yy cable. BUT... I'd like...

Hi. I'm wiring in an MVHR unit, and raised a thread here https://www.diynot.com/diy/threads/wiring-in-an-mvhr-unit.561685/ about it. I was suggested YY cable. The power requirement is shown in red, here By my calculations, I'm needing less than 1 amp, so 1mm cable would work, but I'd run...

I'm wiring in an MVHR unit. I'm doing a lot of wiring on a house build myself, to be signed off later. So, I have this wiring diagram: My query is, apart from the L/N/E in, the rest is from the controller to the unit. So there are a number of wires running between them. Presumably, there's no...

I have a fairly new secondhand toilet I'm going to install. Looking inside the cistern, though, I see this: It seems the overflow has been masticked closed. A bit weird. If I unblock it, am I likely to have problems? My guess is that for some reason the cistern water level is somehow set...

I have a shower tray with an outlet which runs pretty well straight out to a 40mm outlet then to a waste pipe. I thought the outlet had a trap in it, but it doesn't, and we are getting occasional drain smells, (and occasionally worse...) through the waste. The piping is still accessible, and...

Hi. I'm new to underfloor heating, and this may be a silly question, so sorry in advance if it is. We had an underfloor system put in before laying a concrete floor. Baxi boiler now installed, and now the manifold, pump, and all the gubbins are wired in. There are three zones; zone 1 has one...

I'm wiring in a wet underfloor system already laid under concrete, to connect to a new Baxi combi. All good, except that the wiring instructions for the Heatmiser UH4 are a scant. I've worked out the thermostats, actuators, mains in, and ufh pump. The plumber put in a Honeywell 2 port motorised...

I'm doing the wiring in a new build to be Part P tested afterwards. We're having a Baxi combo boiler installed. The wiring says it needs to be "3amp 230v 50Hz supply control using cable of 3 core .75mm 3183Y multiple flexible type" Plan is to run a separate supply off the consumer unit to a...