Ekrueger
03-02-2020, 08:52 AM
I Built a single post RO 4x40 machine this year. I have had a learning curve, but really like the shorter boiling times! I am getting ready to soap wash the membrane for the first time. What do you find as the best pH range and temperature for the Dow membranes? Dow’s guide to wash shows a maximum of 10.5 pH for 113°F or 12 PH at 95°F, or 13 PH at 77°F. Is the higher temperature better or higher ph?