Jeff, i have been looking through your old posts(hope you dont mind). You have been wfp for a long time and i am after a bit of advice. I am on my 2nd venture with wfp, still getting in different results. I use a backpack mostly on my back as i like the freedom of trailing hoses. I have tried it as a trolley prefer it on my back. I use 000 pure water from my ro di. I have tried cleaning frames, then glass with a good rinse. Tried rinsing brush on brush off. Tried not touching frames. Still get indiffrent results.
I have read from your posts that you use a backpack and very little water. You dont clean tops of frames. How many windows can you clean with a 18 litre backpack? Did you initially clean the top of the frame? Do you use a tap on pole hose? Do you use pole hose? Think i am just after some of your experience please on what works for you. Any tips would be much appreciated