[MSTAV]

i have recently gone to wfp using a 2nd hand trolley system  but am finding that im gettin water marks on a lot of the windows i clean when they dry. my water says oooo ppm so is defenatly pure. how long should I BE SPENDING ON EACH WINDOW ECT. id be so greatful with some advice off you guys.  I hope its something simple im doing wrong.
i forgot to say the pressure on the trolley isnt great could that have something to do with it??
thanks buddies

[Richy L]

you only need to spend a few seconds on each pane of glass, its been mentioned before, but its all in the rinsing.

when you rinse, try to keep the water off the frames, rinsing only the glass, as getting water on the frames can cause streaks and spots somtimes. you dont need the water to jet really fast, it just speeds things up, thats all.

[MSTAV]

that is what i do now but i didnt now bout staying off frames, how long should i rinse for?? i usualy just spray the window when done. speaking of frames  iv found on many  frames powdery white poop, anyone else get that how do I go about it with cleaning, am i best off trad with them ones??

[john tomkins]

The white powdery frames will run off like milk when you WFP, just give it a good rinse and it will come good, it's just initially it looks 

[MSTAV]

thanks . so the only reason i should be getting water marks is where i dont rinse for long enough. could this be the only reason coz is worrying me a bit here