Wet/dry vacuum hose

[millinghill]

Hi, I've a ShopVac brand wet/dry vac that has a 2.25" diameter opening for a ho se. I've seen some low-cost 20ft long hoses for sale online, but they're all 1.

25" hose with a 2.25" cuff. And I've also seen some 20ft long 2.5" hoses m ade for Rigid wet/dry vacs. I'm thinking the larger diameter will be notic eable in terms of suction over 20ft. Has anyone had experience using a Rig id 2.5" hose on a ShopVac vac? Are there adapters sold for this sort of th ing, or it's strictly incompatible?

Thanks Theodore

[DerbyDad03]

1.25" hose with a 2.25" cuff. And I've also seen some 20ft long 2.5" hoses made for Rigid wet/dry vacs. I'm thinking the larger diameter will be not iceable in terms of suction over 20ft. Has anyone had experience using a R igid 2.5" hose on a ShopVac vac? Are there adapters sold for this sort of thing, or it's strictly incompatible?

If you can't find the proper adapter, you can make your own by heating up P VC pipe and stretching it to fit your needs. Do it outside or in a well ventil ated area.

This guy does with a torch, but a heat gun would probably work too.

[millinghill]

Yep, I saw that too. But my issue is at the vac itself: it's a female conn ection with 2.25" (inner) diameter and no outer diameter (i.e. it's flush t o the surface); and the 20ft hose I want to buy is 2.5" diameter (equal to:

Not sure if there's a 2.5" I.D. female to 2.25" O.D. male adapter for sale out there, and not something that I can make with any practicality. Or may be someone's done this already and knows I'm wrong about some detail here?

[TimR]

Actually, you can, quite easily.

Download some free 3D drawing software: 123Design, TinkerCad, OpenSCAD all work well. Take the file to your local library and 3D print it.

[DerbyDad03]

nnection with 2.25" (inner) diameter and no outer diameter (i.e. it's flush to the surface); and the 20ft hose I want to buy is 2.5" diameter (equal t o:

e out there, and not something that I can make with any practicality. Or m aybe someone's done this already and knows I'm wrong about some detail here ?

The OD of a 2" PVC pipe is 2.375".

Perhaps you could grind it down to 2.25" to fit the vac inlet and then use a Fernco coupling to attach the 2.5" hose to the PVC.

Or maybe there's a Fernco reducer with a 2.25" OD that would fit the vac on one end and hose on the other.

[clare]

Large hoses have a few advantages, but one major disadvantage. The air speed in a large hose is significantly lower than in a small hose, which negatively affects the perceived suction at the end of the hose and can even allow heavier dirt to "fall ou of" the hose instead of being rushed lonf to the vac.

[clare]

I just chuck a chunk of ABS or PVC heavt wall pipe in my Myford lathe and make what is required - - -

[millinghill]

Point taken. My goal is to use to keep dust down while drywalling (i.e. ho ld next to rotozip, cleanup general sanding mess, etc). Maybe even put the darn thing outside and run the hose through a window so I don't have to he ar it while cleaning up. My concern was there would be a loss of suction d ue to the smaller diameter/longer length. If you're suggesting it might no t be that big an issue, maybe it's worth a go with the 1.25" hose with 2.25 " cuff?

[clare]

Get a 5 gallon plastic psil and some abs or PVC tubing. Connect the vacuum to a fitting in the pail lid, ans the hose to the rotozip to the pipe you fasten into the top, going down about 3/4 of the way into the pail. Fill the pail about 3/4 full of water. The vac will pull the dust onto the pail under water where it will get trapped. It will save your vacuum from feing clogged up with abrasive drywall dust - and you won't need to exhaust it outdoors. Use the small hose, most definitely. The big hose will low the airfloww too much.