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SDR (green sewer drain pvc pipe) vs Poly Drain (triple wall pipe) pricing

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Forum topic by Holbs posted 04-18-2017 12:20 AM 926 views 0 times favorited 2 replies Add to Favorites Watch
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Holbs

1728 posts in 1869 days


04-18-2017 12:20 AM

Topic tags/keywords: sdr sewer drain poly pipe triplewall

Doing some edits upon my shop dust collection. I have a mixture of 6” and 4” HVAC metal latch duct at 26 gauge. Went to my local northern Nevada irrigation distributor and pick up some green pvc SDR for experimentation. Pricing is: 6”=$2.91 per foot / 4”=$1.61. I remember why I went HVAC metal duct now :) However, I told him I was doing some wood working dust collection stuff and the representative showed me another pipe. He called it “Poly Drain” aka at Home Depot as TripleWall. Much thinner than SDR (much lighter) and 0.90 cent cheaper per foot available for both 6” and 4”. This would make it even cheaper than the HVAC 6”/4” 26 gauge I get at cost per square foot. I do not think it would collapse on any 1, 2, or 3HP dust collector…unsure about 5HP. When I say thin, I would say near comparable to 26 gauge thickness of my HVAC dust, if a itty bitty thicker. He also said all wye’s and fitting from SDR fit PolyPipe.
Something to keep in mind folks.

-- The Carpenter Bee is derived from the Ancient Greek word wood-cutter


2 replies so far

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RobS888

2316 posts in 1684 days


#1 posted 04-18-2017 12:37 PM

I used some of that for my DC, but ended up replacing it. If it is the same pipe, you can’t glue it and it has a slight corrugation on the inside that on my longest run seemed to reduce the suction. I think the fittings weren’t as tight as I wanted and the silicon tape kept falling off. The last part may have been me though.

-- I always suspected many gun nuts were afraid of something, just never thought popcorn was on the list.

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Holbs

1728 posts in 1869 days


#2 posted 04-18-2017 01:06 PM

Yep Rob..I think it’s the same stuff. Has a minor ribbing action inside and some kind of black liner. Can’t glue? hmm…I may buy a 10’ piece and experiment.

-- The Carpenter Bee is derived from the Ancient Greek word wood-cutter

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