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Deleted member 23452
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Got to fill that in and send a pic of where were moving drain giving all diameters of pipes. Might be out ground next year
They're fcukers alright. If you look on their website they should have the specs for depths, pea gravel coverage, joint types etc. For some weird reason each water company has slightly different requirements. They'll probably want the run length and fall calculations too, and building control will want to get their snouts in.