Daisy chaining shop-vacs?

[GarageWarrior]

I need a wet/dry vacuum with strong pull for water pickup ...multi-stage vacs are $$$.

Would dasiy-chaing 2 shop-vacs double the pull? As in - take one shop-vac's intake and plug it to exhaust port on the other shop-vac?

I don't have a vac with exhaust port, so thinking about buying something like this:
http://www.amazon.com/Shop-Vac-5873410-6-5-Peak-Horsepower-10-Gallon/dp/B0041T4U5M

12 amp, 10 gallon, exhaust/blower port, 195 CFM air flow, 60" water lift, 360 peak air watts. So doubling them should get 120" lift at the same CFM?

 

[DanarchyCustoms]

In theory you're doing the opposite of turbo compounding with a bunch of shopvacs. Pretty interesting. I wouldn't run one intake port into the other exhaust port but rather join both intakes together. That in my mind would double it. I'm pretty interested in the result so if you try it please post back.

If you're going to spend money on two shopvacs you might as well get the biggest shopvac you can afford instead of buying two and experimenting.

 

[radrush]

Would dasiy-chaing 2 shop-vacs double the pull? As in - take one shop-vac's intake and plug it to exhaust port on the other shop-vac?

I don't think daisy chain through the exhaust port would work. You need to run two vacs connected through a Y adapter. Why buy two vas when you can one that will do the job?

http://www.amazon.com/dp/B000OQ5TKQ/?tag=atomicindus08-20

 

[Milton Shaw]

Vacuums are rated on cfm and inches water pickup. Hooking two vacuums together gives you double the cfm but does not increase the inches water pickup. The multistage vacuums are expensive because they have the cfm's and the high inches of water pickup because of the three stage vacuum motors in them instead of the one stage usually found in shop vacuums. What are you trying to get water out of. The extraction type carpet cleaners usually have three stage motors (some two or more) and tanks to hold 6-10 gallons of pickup. If water only they work great, but if you have trash they don't empty very well as they are designed for cleaning carpet not shop floors.

 

[2ridgebacks]

Can you "stair step" your lift? Maybe you need to vacuum with the lower vac and plumb the upper vac into the drain of the lower. Then you are getting the same total lift with 2 shorter lifts.

 

[nicksnothereman]

I need a wet/dry vacuum with strong pull for water pickup ...multi-stage vacs are $$$.

Would dasiy-chaing 2 shop-vacs double the pull? As in - take one shop-vac's intake and plug it to exhaust port on the other shop-vac?

I don't have a vac with exhaust port, so thinking about buying something like this:


12 amp, 10 gallon, exhaust/blower port, 195 CFM air flow, 60" water lift, 360 peak air watts. So doubling them should get 120" lift at the same CFM?

No. Just like stacking fans of some sort the end result is just the max air flow of the higher one. You don't add the cfm it's just the max of whatever has higher flow (or vac in this case)

 

[GarageWarrior]

I don't think daisy chain through the exhaust port would work. You need to run two vacs connected through a Y adapter.

Y adapter doubles the air flow, but does not increase static water lift.

Why buy two vas when you can one that will do the job?http://www.amazon.com/dp/B000OQ5TKQ/?tag=atomicindus08-20

It's 3 times the price and still a 12 amp motor like the one I listed. But it's brushless so probably quieter and will last longer.

What are you trying to get water out of. The extraction type carpet cleaners usually have three stage motors (some two or more) and tanks to hold 6-10 gallons of pickup. If water only they work great, but if you have trash they don't empty very well as they are designed for cleaning carpet not shop floors.

Applications: carpet extraction, removing water/emulsified oil from shop floor, vacuuming electronics.