ETC Posted August 17, 2023 Share Posted August 17, 2023 Quick question - what support do underground drainage pipes need where the house has piled foundations? Link to comment Share on other sites More sharing options...
Mr Punter Posted August 17, 2023 Share Posted August 17, 2023 Same as any foundation. 100mm shingle bed, then shingle to crown of pipe, backfill with selected dug material or imported fill. Link to comment Share on other sites More sharing options...
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