Ever hear of this? I know pricy/vol but pretty convenient for a small collection. Have a Spin Clean. Can't find solid info about TergiKleen. Because of LibofCon, decided to use Tergitol 'something' vs other homebrews mentioned everywhere. Deionized water too. Saltwater Aquar place up the street is $1/gal. Might as well. ALSO PLEASE PLEASE: Can anyone answer, in layman's term,s what the difference is between 15-S-7 and 15-S-9? Is 9 ok or not. Why/why not. Rather not mix 5 & 9. Don't have 5 anyway. I do have unopened 9. Sorry to kinda beat a dead horse.