That's correct, Steve. It must be attached at top and bottom. It would form what is called a sight glass.
From: DoIt_Yourself@yahoogroups.com [mailto:DoIt_Yourself@yahoogroups.com] On Behalf Of Steve Wilson
Sent: Sunday, October 07, 2012 9:10 AM
To: DoIt_Yourself@yahoogroups.com
Subject: Re: [DIY] Water Level Indicator for a Shop Vac?
I would think if you attached the tube at the bottom of the side of the shop vac's tank and then led it up the side of the vac's tank and reattached it at the top of side of the vac's tank, the pressures in the tube would equalize. It should nicely show the water level in the shop vac. Be sure to seal both attachment points and the hose attachment points or you will loose vacuum. Bulkhead hose fittings are what you would need for getting a tube attached to the side of the vac.
This is a good example of one, they aren't that easy to find. You might look at aquarium shops near you.
http://store.amequipment.com/90-bulkhead-fitting-p-92.html
Steve
On 10/7/2012 5:33 AM, Aki wrote:
Ok, this may sound a little strange but I'll toss it out there.
I have a 16 gal Shop Vac with an auto pump that pumps out the water via a garden hose as the vac starts to fill up.
I use it to help drain our hot tub and it works great. The only problem is, the suction is much faster than the pump
that pumps out the water so it fills up and shuts off before the pump can drain the vac.
What I do now is try and time it to so that I pull the suction hose out of the water before it completely fills up to allow
the pump to catch up. A major pain since I'm not always accurate.
What I'm thinking of doing is drilling a small hole into the side of the vac and putting a small plastic tube along the outside
to act as a water level indicator. But before I do that, I don't know if it'll work on a vacuum and I may compromise the
suction by doing so.
Anyone ever do this or know of any shop vac type of device that has this from the factory? I would think there's a valid
reason that manufacturers don't have this on wet/dry vacs although it sure would be handy. I searched on the web and
didn't see anything specific to doing this.
-aki
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