They say 1-2 tbsp/Liter
so I used about 6tablespoons for a large home-depot type bucket.
I kept checking on it.. at like 30 min, then again at the hour mark
I also took it out, washed it out with fresh water and then put it in again.. make sure to get in the heat exchanger too!
And another thing I learned is you REALLY need to get into every orifice.. especially the small ones inside of the solenoids!
I will update this thread with more pictures after my winter break starts (12/21) cant wait

Also im looking for any interesting ideas about what to do with the nasty multicolor panels