hello all, this is not 4 me as ive got a propex and 2 hotwashes, but a mate who dosent have the funds to do that shortlist, wants 2 go down the ipa route and was wondering what the costs are. Looking at back posts most reckon 10% min, but he gets the water @ room temp so if he went out to clean @ say 10 till 4 in winter -2 degrees c, what do u think he can get away with cleaning on the day? And when hes finished he will drop any water out off the tank, remove hose reels and pump box setup, then in the mornin boil a kettle of pure and put it in the tank 2 thaw out the outlet? So what im asking is the dilution rate @ -2 degree c??? thanks m