Re: Exhaust hood ideas for test tanks

[shoestringmariner]

Got photos of your tank in use? I’d say you’re looking at a BI Wheel (backward incline) general exhaust fan if you want enough draw. You may have to fashion a 3 sided hood with pick up tubes on each side of the tank, near the water to draw off the fumes. The wider the tank, the more flow you need to introduce. A long, narrow slice in the duct will help, or better yet, make adjustable dampers to tailor your draw