Hi everyone, I was wondering if anyone can shed some light on cleaning
mixtures for membranes. mine are filmtek SW30-2540.
The literature says PH12 for alkaline cleaning
. What percentage of TSP in water
gives this PH. Also PH of 2 for acidic cleaning (muratic or Hydrocloric acid are fine). What mixutre of solution gives these PH balances? Where does one get a PH meter? I think for now I will not do acidic cleaning as it is dangerous in reacting with biological life on the membrane. So just the alkaline. We stayed at and anchorage for too long and I think I have some growth on the membranes. Salinity of the product is too high so I tink I might have some growth.
Besides the biocide from West marine
, where can one buy sodium metabisulfade? I went to CVS and the pharmacist was looking at me like I was speaking foreign language. But he told me to go to a local highschool and ask the chemistry teacher if I can borrow some.
Then I went to a water
filtration place and the guy was not familiar with it. He told me to just get new membranes???
Anyway, I think I'll go get the west marines stuff for pickling but i'd really like to know how to get a PH of 12 using TSP.