http://www.drainages.co.uk/whats-the-best-kind-of-pipe-to-use-for-underground-drainage/ Help with Your Blocked Drainage Wed, 16 Sep 2009 12:29:50 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://www.drainages.co.uk/whats-the-best-kind-of-pipe-to-use-for-underground-drainage/comment-page-1/#comment-273 slide Thu, 27 Aug 2009 19:29:38 +0000 http://www.drainages.co.uk/whats-the-best-kind-of-pipe-to-use-for-underground-drainage/#comment-273 I would use DWV grade 3 in. its cheaper and work as good as sch.40.DWV stands for Drain Waste Vent. I would use DWV grade 3 in. its cheaper and work as good as sch.40.DWV stands for Drain Waste Vent.

]]> http://www.drainages.co.uk/whats-the-best-kind-of-pipe-to-use-for-underground-drainage/comment-page-1/#comment-272 starr Mon, 24 Aug 2009 22:26:16 +0000 http://www.drainages.co.uk/whats-the-best-kind-of-pipe-to-use-for-underground-drainage/#comment-272 Id use sch 40 some people use 30/34 pipe but if you hit it in the winter its broke.4''sch 40 to get away from the house then switch to 4"coiled drain tile with the sock cover unless your running it out to grade then sch 40 above ground 30-34 under ground. perforated pipe is 2729 the 3034 is like one grade thicker. 3" pipe will not handle the flow from a roof.and fyi dwv(drain waste and vent) is sch 40 The cheaper way of going sch 40 would be using foam core pipe its not for pressure. Id use sch 40 some people use 30/34 pipe but if you hit it in the winter its broke.4”sch 40 to get away from the house then switch to 4″coiled drain tile with the sock cover unless your running it out to grade then sch 40 above ground 30-34 under ground. perforated pipe is 2729 the 3034 is like one grade thicker. 3″ pipe will not handle the flow from a roof.and fyi dwv(drain waste and vent) is sch 40 The cheaper way of going sch 40 would be using foam core pipe its not for pressure.

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