Shop vac water question

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diymirage

HP@idle > hondaHP@redline
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I have an old shop vac I use to drain rain water out of the paddle boats
It works great BUT only has a 5 gallon capacity
This is probably a dumb idea, but could I put an outlet on the bottom of the can to let the water drain out as soon as it gets sucked up, or would that kill the vacuum effect and just suck up air (which is lighter)?
 
You could adapt it to a larger container, 55 gal drum for instance.
 
are the boats right next to the water?

*edit, whoops I re-read your comment and see you said rain water..
 
Tried that before. It will not build vacuum

i wonder if i could put a valve on there
*turn on the vacuum to start removing water
*open the valve as the tank is 2/3 s full

as long as the water drops out slower then it gets in, it might still work?

You could adapt it to a larger container, 55 gal drum for instance.
that might be my best bet
 
What about a 2nd tank (drum?) thats sealed up, with 2 hoses - 1 connecting the bottoms of the 2 tanks and 1 connecting the tops. As long as the 2nd tank isnt higher then the 1st then gravity should do its job.
 
What about a 2nd tank (drum?) thats sealed up, with 2 hoses - 1 connecting the bottoms of the 2 tanks and 1 connecting the tops. As long as the 2nd tank isnt higher then the 1st then gravity should do its job.

not sure how this is beneficial over grabbing a larger tank and putting the vacuum on top of that?
 
i'd think it would work, but you'd need to block the regular exhaust
 
I put a valve on the bottom of mine. Fill er up and open the valve
 
As soon as you open the bottom it will suck air past the water that is in it unless like kursplat said you blocked the exhaust at the same time that you opened the valve.
 
got a version that a hose attaches to and you can suck the water and pump out at the same time...put it pulls it in quicker than pumps it out. maybe a larger discharge hose?
 
just seal the vac hose though a 55g drum. Itll take a while to fill up. Then drain it with a spigot on the bottom connected to a garden hose. Water the plants
 
Some vacs have a pump,then you can pump it out.
 
Sell the boats and the shop vac and put the money in your Mopar.
 
then you don't have enough mopars
amen to that
i got a grand total of 2, and they are the 2 most reliable cars i have
(one of which is a 08 charger, i think right now, average cost of ownership has been $1000.00 per year...and that includes purchase price)
 
This is easy. Put a 55 gallon drum between the shop vac and the suction hose. Then you'll fill the drum first.
 
This is easy. Put a 55 gallon drum between the shop vac and the suction hose. Then you'll fill the drum first.
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We use this configuration at work to suck desiccant out of air dryers. One of them holds 750 pounds, so it sucks when you gotta keep stopping to empty the shop vac. Speeds up the process too so we can get more *** time.
 
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