Dust collection sewer pipe to flex connections

[John Jenkins4]

A frequent question on DC installs is the problematic connection of sewer (ASTM 2729) to flex pipe. Here's how I did it.

Cut slots into the end of the pipe.

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Tighten a band clamp at the bottom of the slots to pinch the end together.

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The end is now just under 6".

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Slide the flex on the pipe.

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Remove the band and wiggle the flex down to cover the entire slots.

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Put the band over the flex and Bob's your uncle!

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Works on 4" too.

[glenn bradley]

Well done. I have seen folks use a torch and the band-clamp to squeeze the end but, I see the slots as not problem and probably a bit quicker. I don't have any conversions to hose other than at blast gate locations so, for me the gate is the adapter. I will keep this in mind though as who knows what the next modification or addition will require. Thanks!

[Martin Wasner]

Stuff a non-gasketed union connector for spiral pipe in the end of the pvc, slip your flex over the other end.

Done.