Pipe size

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Forum topic by holsterguy posted 09-04-2018 11:13 AM 471 views 0 times favorited 6 replies Add to Favorites Watch
View holsterguy's profile


42 posts in 1670 days

09-04-2018 11:13 AM

Been helping my BIL remodel his house, he was over to plane some boards,and saw how dusty my shop is. Yesterday, he showed up with a HF dust collector! Oh boy!
Would like to run piping to this thing, but kinda confused what size to use. Should I use 4” pvc, or 5”?

6 replies so far

View GrantA's profile


2136 posts in 2019 days

#1 posted 09-04-2018 12:52 PM

That’s an awesome BIL!
In my opinion the HF is best used as intended – portable. Roll it near the tool you’re using. I’ve been using mine that way for years with 4” flex hose and a quick connect fitting in the end I got from grizzly.
There’s plenty of info out there about hard piping it though

View Bill White's profile

Bill White

5243 posts in 4572 days

#2 posted 09-04-2018 02:03 PM

I’m in the dugout with GrantA. I still use flex pipe in my 20’ x 20’ shop. The HF unit does have some drawbacks, but darned few for my needs.

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View Rick  Dennington's profile

Rick Dennington

6789 posts in 3806 days

#3 posted 09-04-2018 03:23 PM

I’m kinda on the fence here with this idea….Moving the d.c. from one machine to another with connections might be fine some most people, but not for me….I have a very bad back and can’t bend over to do connections w/o it killing me….Years ago when I could, I ran pvc 4” pipe to every major machine in my shop along the ceiling and used 4” flex hose down to each machine with blast gates….All my machines and work benches are extra high (42”) so it keeps me from having to go from one machine to another hooking up pipe….But moving the d.c. from one machine to another works if you want to do it that way….It’s your shop, so do it like you want to…..!!

-- " There's a better way.....find it"...... Thomas Edison.

View GrantA's profile


2136 posts in 2019 days

#4 posted 09-04-2018 03:48 PM

Rick of course having them plumbed in is great but it will magnify the weakness of a small collector. Still better than nothing though. Short hard lines with long sweep elbows can be placed on the machines to negate bending over and fumbling with hooks. plenty of ways to skin that cat, none right or wrong!

View Robert's profile


3607 posts in 2092 days

#5 posted 09-04-2018 03:56 PM

5 or 6”.

Definitely not 4”.

-- Everything is a prototype thats why its one of a kind!!

View holsterguy's profile


42 posts in 1670 days

#6 posted 09-04-2018 04:20 PM

Thanks guys. That’s what I was wondering. Been trying to find info, and all I’ve been able to find is some guys ran 4”, and said it worked ok, and others have said go 5” cause that is what the opening to the impeller is.
I’m really hoping to put on a Fien baffle and exhaust outside.

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