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Whoa! Learned more than I expected from that simple link. Biggest thing I took away is that you can't combine an anionic detergent with your acid bath, or the acid will neutralize the detergent cleaning action. Now I have to see if the tiny bit of Simple Green Crystal that I add to my homemade phosphoric acid ultrasonic cleaning solution is anionic or non-ionic.
Yes, I tweaked it to a closer match of LFW, but you're the Walter White of Scuba Maintenance. Anyway, @grantctobin answered the chemistry question and I've no reason to doubt him. The bigger question is whether Simple Green reduces the effectiveness of our home brew to an unacceptable level when diluted for use in an ultrasonic cleaner. Comparing our home brew to plain water I would say it does not. Additionally, when used at a higher strength, i.e. 15% phosphoric acid (not for use in an US cleaner) then transferred into a baking soda bath-the foaming action tells me the solution is still plenty acidic.
