Russ, Do you know what size the outlet holes are on your "Bubble Master"?
On the H20 Air Injector they're maybe 1/16" and I'm beginning to think that may be too small, as it doesn't take much air volume before it's acting like a water-jet.
Never gave that a thought until this thread started. It seems that more air is better, but there's a world of difference between what 1/16" and 1/8" can deliver.
BTW - Thanks for all of the info you've posted over the years on your Bubble Master...it inspired me to an air injection system.
John Allin
14x18 Hemlock Timber Frame Sugar House 2009
Leader 2x6 w/Patriot Raised Flue Pan 2009
Leader Steam Hood 2014 - Clear Filter Press 2015
Leader Revolution Pan and SS Pre-Heater 2016
CDL Hobby RO & Air Tech L25 Hi Vac Pump 2019
06' Gator HPX to collect wood & sap
14' Ski-Doo Tundra for winter work in the woods
Great Family 3 grown kids+spouses and 7 grand kids who like the woods
7th Gen Born in Canada - Raised in Chardon Ohio - Maple Capital of the World..<grin>.