I previously had a water table and got decent results in fume/spark control.
I sold that table and made a downdraft table because I use my table fairly infrequently.
My shop is air conditioned so I don’t want to exhaust outside, add to that we frequently get dry enough that a grass fire is a concern.
I’d like to stay with downdraft, but need a way to decrease fumes and fire risk.
I have a 13gallon harbor freight dust collector that pulls the fumes in, exhaust is where I’m going to have trouble.
Has anyone tried putting the exhaust into a barrel of water as sort of a water trap?
Does it work ok ? Any problems I should try to avoid?
Thanks
Duke
Plasma Table Exhaust fan into water trap?
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Re: Exhaust fan into water trap?
I seem to recall seeing some photos of a system where the exhaust was ducted outside thru the wall, and then it turned at 90 degrees and was pointing down into a water trap. I think this was just a container filled with water. Apparently most of the smoke and debris was trapped by the water. In this particular case I think the owner was attempting to mitigate airborne contamination drifting into his neighbor's yard. It would certainly be worth a try, and it must might work with the trap indoors as well. Maybe do a google search to see what you come up with.
David
David
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Re: Exhaust fan into water trap?
I have also seen that done and appeared to work really well.
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Re: Plasma Table Exhaust fan into water trap?
What is the principle of the design? Does the exhaust pipe get plumbed into a bucket of water where the exhaust is say 3” inches below the water level so that it will bubble through the water trapping the toxic gasses in the water?
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Re: Plasma Table Exhaust fan into water trap?
I was thinking about just putting the exhaust pipe at the water surface, or maybe just far enough that it splashed the water pretty vigorously around a semi enclosed bucket.
I am guessing this will increase humidity in my shop if I run it much.
Although the AC should dehumidify fairly well.
I am guessing this will increase humidity in my shop if I run it much.
Although the AC should dehumidify fairly well.
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Re: Plasma Table Exhaust fan into water trap?
No - exhaust exits above the water surface.N2 Welding wrote: ↑Tue Feb 07, 2023 10:44 am What is the principle of the design? Does the exhaust pipe get plumbed into a bucket of water where the exhaust is say 3” inches below the water level so that it will bubble through the water trapping the toxic gasses in the water?
David