Hmmm, what is S&D? Sanitary sewer? Not what I use for pipe.
All my lines are 4" irrigation pipe with 4" flex transitions. I have about
50 feet of header around the shop. The 4" flex fits right onto the inlet
provided on the cyclone (on the small one I bought, the larger one is
different). The discharge at the top is 6" and is actually a length of 6"
pipe x about 20" long, most of which extends down into the cyclone body. I
just made a MDF donut to fit the 6" pipe and glued in a 4" fitting. This
seems to flow in an adequate manner.
My dust collector has 2@ 4" inlets, or 1@ 6" inlet. An enterprising soul
would have run 6" from the cyclone outlet directly to the 6" DC inlet. I
might still do that, but have you priced 6" flex? I already had surplus 4"
pipe and flex.
Okay, I'm with you. I use irrigation pipe which is even less expensive. It
is very thin wall. My preference is the solid wall stuff where the wall is
only about 1/16" thick. The borgs here have started carrying stuff with
about 3/16" wall and the wall has a corrugated liner. It is smooth inside
and outside, but has a corrugated medium. Both come in perforated, for
french drains, and non-perforated. I recommend the non-perforated :-)
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