I have great success with powder Tide HE at up to 200F; 2 Tbs of it and 2 Tbs of STPP. There is no excess sudsing and it rinses out just fine so you don't have to worry about buying Persil. Many HE detergents, including all of the liquids I have tried, go berserk with suds at high temps.
Do you need the operating instructions? I can send you a copy. [this post was last edited: 12/29/2012-22:27]
Do you need the operating instructions? I can send you a copy. [this post was last edited: 12/29/2012-22:27]