Shop Vac Question

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Forum topic by CharlieM1958 posted 03-02-2009 08:16 PM 9579 views 0 times favorited 21 replies Add to Favorites Watch
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16229 posts in 3637 days

03-02-2009 08:16 PM

This may be a dumb question, but I honestly don’t know the answer…. physics was not my best subject.

After reading some positive comments, I have ordered a Dust Deputy to hook up to my shop vac. I know it’s not a dust collection system…. I am mainly getting it because I’m tired of constantly clogging up the filter with fine dust when I clean up in the shop.

Here is the question: Does length of hose have any effect on suction? I was thinking about getting a long hose (maybe 20’) so I can pretty much leave the vac stationary while I just drag the hose around as I clean up. I also use the shop vac for my router table and spindle sander dust ports. But I don’t want to order a hose only to find out suction is diminished.

Any of you guys or gals have first hand experience with this? Thanks!

-- Charlie M. "Woodworking - patience = firewood"

21 replies so far

View Karson's profile


35032 posts in 3819 days

#1 posted 03-02-2009 08:24 PM

Charlie: The amount of vac might be deminished but it makes your labor easier. I hook up a couple of flex hoses from a couple of shop vacs and go around the shop. It’s easier than dragging the vac around after me and then moving it to get the dust under it.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia †

View CharlieM1958's profile


16229 posts in 3637 days

#2 posted 03-02-2009 08:26 PM

Thanks, Karson. Yeah…I’m tired of doing that dance. Plus, even though it is on wheels, it always gets hung up on something as I’m trying to drag it around.

-- Charlie M. "Woodworking - patience = firewood"

View PurpLev's profile


8523 posts in 3067 days

#3 posted 03-02-2009 08:38 PM

It will reduce suction, but it might not be that much that it’ll bother you (depending on length of hose, and your ShopVac’s HP), knowing the hose lengths that are available on the market – I assume it’ll be just fine for your needs. as long as you’re not trying to get a 50’hose that is ;)

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Bob #2's profile

Bob #2

3809 posts in 3440 days

#4 posted 03-02-2009 08:39 PM

If you can put in a length of 2” vac piping with a couple or three takoffs you should be golden for most of your needs.
I used a similar setup before I installed central vacuum.

Worked just fine considering the size of the system.


-- A mind, like a home, is furnished by its owner

View jeh412's profile


129 posts in 2794 days

#5 posted 03-02-2009 08:44 PM

I often use an extra hose (or two) just so I don’t have to constantly untangle the vac. Any loss of suction isn’t noticeable with my vac, although there probably is some. My vac is a Ridgid WD1250, which is pretty powerful. I don’t think my old Craftsman vac would have done well with an extra length of hose.

-- John, co-owner Sawdust 'n Stitches

View CharlieM1958's profile


16229 posts in 3637 days

#6 posted 03-02-2009 08:50 PM

Thanks, guys.

For the record I have a 16 gal. Craftsman like this one.

-- Charlie M. "Woodworking - patience = firewood"

View jeh412's profile


129 posts in 2794 days

#7 posted 03-02-2009 09:00 PM

You should be OK, Charlie. My understanding is that the same company that makes Ridgid vacs also makes the newer Craftsman and that many parts are interchangeable, so you should have plenty of power.

-- John, co-owner Sawdust 'n Stitches

View Kindlingmaker's profile


2656 posts in 2945 days

#8 posted 03-02-2009 09:08 PM

Charlie, we have the same vac and its a beast. The vac is cumbersome to say the least and it gets clogged up on each use BUT it does suck! An extra length of hose will work just fine. I will be replacing my STIFF hose with a much more flexable one and will be putting a prefilter on somehow. Woman’s nylon hose works well but that too gets clogged very easy. All this clogging does mean that the vac and the filters are working well. (Just a pain in the bottom.)

-- Never board, always knotty, lots of growth rings

View Craftsman on the lake's profile

Craftsman on the lake

2506 posts in 2857 days

#9 posted 03-02-2009 09:14 PM

That’s my shop vac. Hey, if you’re going to leave it in one place and want a long flexible pipe I have an fairly inexpensive solution that I use for short extensions to me stationary tools from my 4” dust collection system and on my shop vac.

Walmart sells RV sewer hose. It’s ribbed black stuff like our shop vac but much, much more flexible. It’s 3” so some reducing will be necessary. The best news is that it’s about $7 for 20 feet of it. And it is tough and won’t collapse. After all think about what it was ment to carry.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View CharlieM1958's profile


16229 posts in 3637 days

#10 posted 03-02-2009 09:37 PM

Hmmm… thanks for the tip, Daniel.

Sounds like my idea will work out. I knew this was the place to ask!

-- Charlie M. "Woodworking - patience = firewood"

View TheDane's profile


4932 posts in 3082 days

#11 posted 03-02-2009 09:40 PM

I have a 5.0hp ShopVac that I use with 20’ of hose and one of Rockler’s Mini Dust Collection Separators (the one that fits a 5-gallon bucket).

I haven’t noticed any loss of suction, most everything winds up in the bucket, and the ShopVac’s filter doesn’t clog up. Makes life a lot simpler.

The Dust Deputy is probably an even better solution.

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"

View Chris Davis's profile

Chris Davis

1457 posts in 3401 days

#12 posted 03-02-2009 09:43 PM

I was gong to suggest a pool vac hose, but Daniel’s idea sounds better (cheaper)

-- Watch live video from our shop.!current-projects/c3c1

View CharlieM1958's profile


16229 posts in 3637 days

#13 posted 03-02-2009 09:53 PM

Chris, thanks for the idea. I have a nice long lenth of pool hose coiled up next to the house. I rarely use it because I have a Polaris automatic pool cleaner. It never crossed my mind to try that.. It’s a little on the heavy side, but I might give it a try.

-- Charlie M. "Woodworking - patience = firewood"

View rtb's profile


1101 posts in 3132 days

#14 posted 03-02-2009 11:48 PM

Charlie, i have the 16 gal rigid and routinely use with 2 hoses. not really a problem. The only tool that it connects to is my ROS and if suction is reduced it would be hard to prove ( and rigid make its hoses extra long to start with)

-- RTB. stray animals are just looking for love

View poopiekat's profile


4188 posts in 3153 days

#15 posted 03-03-2009 01:22 AM

Hey Charlie! Daniel is right about RV sewer hose. After buying your hose at WalMart, go to an RV dealer parts department and check out the cool collection of male/ female twist-lock connectors that you can use on your machines. There are flush-mount tank fittings(no pun intended) and other flanged fittings with which you can standardize your whole shop to a 3” RV system!!

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!

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