Post and beam

Or just a bit of grass. it'll be either side of the central drive. I cannot remember if planning require it to be SUDs compliant. So until i get it confirmed i am working on it needing to be. Sand would do the job unless there is a cheaper filler, hence my questions. Then a topping of topsoil.

So the question is, whats the cheapest SUDs compliant infill material?

House is built and occupied. Soil from the foundations is required elsewhere.

Each side is about 8 metres by 8 metres. Then the depth/height is 900mm tapering to zero, hence me saying a wedge shape.

Hi Guys Our site slopes down away from the lane towards our house by about 90cm over 8 metres. Each side is also about 8 metres wide. So i have a wedge shape on either side of the central drive that i need to fill. Not certain if it needs to also be SUDs compliant. Filling it 100%with topsoil will probably be more expensive than necessary. If anyone has done similar how did you approach this please?

Thanks for the suggestions guys

Here are pictures of the manifold.

It does, but thats not relevant to my original post.

Yes. We have a 1.4 reading on air tightness from Aerobarrier. Yes it is. 75mm, why?

Will do when i get home later.

Thanks dude, that was the motivation. Regarding the Ivar mixing valve option. I am not sure i have the space to install one as it happens. Therefore a review of my radiators to move them around and fit a couple of larger ones might be the thing to do. K3 instead of K2 perhaps.

I dont propose to disconnect anything. I thought i could use the pressure/flow thats in the UVC. This is after all the same pressure as the mains inlet is it not? I have not done anything yet. sanity check here first.

WC @ .45, on all the time.

Based on a previous discussion in another post i did wonder about a mixing valve. There is nothing like this currently in our setup.