Thank you all I will deflate it to the original 20psi.
Why a 5gal ? well no special reason except that I got a good deal on one, around 45$CAD for a domestic Watts one. Capacity is 4.5gal, 2.8gal acceptance to be exact. I have enough spa to fit it under my head sink.
Mr RTF, I have a separated special hidden secret tank for the holy nectar, I do not want to risk to mix it with this water that is just good enough to clean the glasses
L