[thompsonr]

Hi
Just got started on wfp.Can anyone help with the following:
1.On filthy windows what flow rate should you use and what is the ideal flow for cleans once they are done regularly?
2. with first cleans for new customers I scrim off, once dry rather than leave "spoTting ".I do this  rather than telling customer it takes 2/3 cleans for good results.Does anyone have other ways of working on first cleans?
 :

[groundhog]

If you clean them well enough you shouldn't get any spotting!! 

[michael papworth]

(1) If the windows are really dirty, it's scrubbing that they need more than a copious flow of water.

I'd suggest a regime of:

water on and scrub
water off and scrub
water on and scrub
water off and scrub

etc until they come up clean.

Once they're clean, a higher flow rate seems to work better than a lower one - and work faster to save time and water.

[Wayne Thomas]

Wet everything, scrub the frame, scrub the glass, rinse the glass only, job done, first time. Done properly there shouldn't be any spots after water has dried especially on UPVC windows.

[thompsonr]

If you clean them well enough you shouldn't get any spotting!! 

Groundhog,thanks for reply but I was warned by wfp,ers and also on wfp course that spotting is likely.Do you have specific way of avoiding ?

[geefree]

i generally find that the spotting is usually down the middle of a large pane...

with two small openers above, and betwen these openers is a lot of dirt... which means contaminated pure water... will drip down after i have gone.

i always scrub and rinse that centre bit 2 or 3 times.

regarding other spotting... i dont tend to get it these days... i used to..

but with the help of the guys on this forum.. i seem to have got the rinsing just right...

That may be the problem....

After scrubbing and rinsing the frames.... i then scrub the top of the glass... so i am scrubbing the underside...top of the frame and seal

its easy to forget the seals... but thats where the spotting, tends to  drop from.. especially if the seals are  broken...

rinsing is the key, plenty of it

 

[Mick (UHPS)]

Sometimes UPVC can leach on a 1st clean so watch for milky coloured water running off the sills. When this occurs scrub all the windows and frames then go back round just scrubbing the glass. I've had some do this for up to 3 cleans.

If the windows have been cleaned traditionally previously, soap can release from behind the seals as you scrub, so watch for this.

Oh and I always use loads of water on a 1st clean.