As most here know I sell WFP systems and I tell everone who is making the change from trad to expect SOME spotting and maybe a few runs on 1st cleans.
I think its a combination of things. Residue etc and also the inexperience of the new WFP user. It takes a little time to get comfortable with the pole and be able to brush and rinse very accurately.
When I made the change about 3 years ago it took until the 3rd clean to get really good results every time. Some windows will never come up perfect with WFP and some shouldn't even be done with WFP. It takes a little knowledge and experience to be really proficient and be able to walk away knowing that there will be no spotting at all.
Regards
Andrew
You sell wfp systems now that does shock me.
But have to agree with all you say in your rely.
another good tip on upvc is to scrub hard and rinse very well more attention to the frame than the glass, rinse frame first before you start on the glass, clean the glass and rinse top frame again clean glass again then rinse glass only not touching top frame only glass up to seals or is that sills what ever you will understand.
Ian
p.s Andrew hope you had a good holiday.
for a top service for a wfp system and after sales service go to
www.purefreedom.co.uk