Drainage - Foul drainage on a 1:5 slope

Foul and surface water, private drains and public sewers, land drains and soakaways, filter drains and any other ways of getting rid of water.
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AliBelton
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Joined: Tue Nov 19, 2019 4:27 pm
Location: Oundle

Post: # 118010Post AliBelton

I have to get a foul sewer for a shower room and toilet down to the sewer run by the house. It is a 17.5 meter run and a 3.5 meter drop to the level of the existing run. Do you have any advice regarding the way to do this?
Alasdair Belton
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Tony McC
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Location: Warrington, People's Republic of South Lancashire
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Post: # 118015Post Tony McC

That's relatively steep, but not to the point of being ridiculous.

You can lay at 1:5, if you wish, but the alternative would be to lay the pipe at, say, 1:20 or thereabouts, and then use a drop shaft connection where it meets the existing... Dropshaft Connection

Personally, I prefer dropshafts as they keep the flow rate sensible and they reduce the amount of excavation required.
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jwill
Posts: 148
Joined: Mon Feb 08, 2016 6:00 pm
Location: leic

Post: # 118058Post jwill

Late to the party bit of involving bco which should be really ask their preference. Will get them onside and inflate their importance!
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Tony McC
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Post: # 118061Post Tony McC

That usually works! :D
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