Shrek,
Found this. Me doing a clean at a normal rate:
https://www.youtube.com/watch?v=K9Kger9r_38Minimal slug trails on the window to the right of the bay. Twelve weeks since the last clean.
Checked after I cleaned and there were a few small drip marks on the left hand side of the bay (where I had to lean backwards over a pile of bricks to clean).
Flow at about 60 on the controller (about 2.5 litres a minute). SLX22, Gardiners Supreme medium hybrid (since changed to soft).
Cue the Poisonous Brothers to tell you that I'm wearing the wrong clothes, showing off, doing a splash and dash, must be a poor job, my customers are mugs, franchises are a con, etc, etc
ad nauseam.
Vin