I added a few pep's and they did nothing. I have shot hot water, kalk paste, and joe's. Joe's is a lot easier as I don't have to mix. The only drag is that when filling or squirting, seems like there is a few globs in there. I have to pull the applicator off and rinse out.
It does work great on the aip though. I just shot a few tonight. Just don't do too many at once. A few a day to keep the params in order, too many and your water params will get a little out of whack.
JR