Search:

are you thinking silicates or phosphates? silicates are dirt. phosphates attract the dirt, calcium etc.

yeah, we have something almost just like that. also does a beter job at sucking all the old out.

I know there have a been a couple of discussions about this, but when I searched I didn't see an actual thread.

Just wanted to share this little bit. I have in front of me a gallon of Prestone...