cool, thanks all. The regs seem a bit over the top to me, I can understand the 100mm below around and on top, but I don't understand the 300mm on top.
I am going to have excess soil if I put in 200-300mm of shingle. Not sure how I'm going to get rid of that....
I was reading Part H last night and one part got me thinking, see screenshot.
Most of the soil that I extracted from the ground was clay - does this mean that I cannot backfill it again with clay based on what the regs say about 100mm maximum clay lump size? It seems it's OK to do that from...
Ah, inspection chamber, that is the terminology I was missing! Yes I read part H last night and I your comment confirms what I took from those. I have enough drop to use existing IC I think. Plumber thinks so too. And yes it's 1 in 40.
some excellent points there thanks!
It is part H for drainage and waste, I am reading it now
plumber is sorting the SVP valve
for isolation valve, could I not just have something inside the building, like a little valve that sits in line with the pipe?
I'm not so sure about that - all the searches I did returned advice about under pavement services, not gardens, and also none of them talked about combining waste with other services. Maybe its my searching that is off.
I admit I dont know what a rodding point is, but presumably it is someplace to access the drain to unblock it? I have a drain / manhole cover in the garden so I'm guessing that will do?
interesting you say about using screened comms cable and combining with electricty in same conduit - that is...