[GB Window Cleaning]

okay so im really miffed off today 

after yesterdays custy moaning about water marks left on the glass ive been checking all my windows today and ive noticed a few have these very same water marks too 

mostly in the same place at the bottom about 6 inches from the bottom of the glass and sometimes the edge of the glass too!

im only using a trolley and im only D.I so to conserve water i have my pump setting very low but never thought this would cause those marks? how can it? its vloody pure water!!!

HELP 

[dazmond]

sounds like you need to rinse more mate!is it spotting?i use a trolley and use a high flow.in this warm weather you need to use more water.scrimping on water is not gonna give you a good finish mate!

[Helen]

Have you checked your TDS after DI?
Have you checked your TDS after brush jets?
Do you clean frames and cills every clean.
Have you been rinsing enough?
Is your brush contaminated in any way?
 

[neil kellett]

Very true! Don't be miserly with the water. It needs to have the weight in it to float the dirt to the bottom of the glass and sheet. In this weather, if it doesn't have the volume or weight to make it to the end it will leave streaks as the dirty water has run and cannot make it any further.
Spots in the middle - not enough scrubbing.

[GB Window Cleaning]

sounds like you need to rinse more mate!is it spotting?i use a trolley and use a high flow.in this warm weather you need to use more water.scrimping on water is not gonna give you a good finish mate!

yes daz, its spotting around the bottoms and on one glass pain it was slightly around the edge too!
do you only pole 1st floor and above daz or are you 100% w.f.p?

my method of maintenence clean poling is quick little scrub on frames, then one scrub on glass quick rinse then 2 or 3 scrubs on sills

its hard to describe my working method in words but what is your poling method like? and how many ltrs of water would you use for 1st floor average 3 bed semi?

thanks mate

GB

[GB Window Cleaning]

Have you checked your TDS after DI?
Have you checked your TDS after brush jets?
Do you clean frames and cills every clean.
Have you been rinsing enough?
Is your brush contaminated in any way?
 

I check my tds regularly after di
i dont check tds after brush jets ive never seen the point 
yes i clean frames and cills every clean
im not sure if i rinse enough! how much do you rinse?
im not sure if my brush is contaminated! how would i know if it was? i check it after nearly every window for dirt that could scratch!

many thanks

GB

[GB Window Cleaning]

Very true! Don't be miserly with the water. It needs to have the weight in it to float the dirt to the bottom of the glass and sheet. In this weather, if it doesn't have the volume or weight to make it to the end it will leave streaks as the dirty water has run and cannot make it any further.
Spots in the middle - not enough scrubbing.

when i read your post i think i just had a "light bulb" moment 

ive actually never thought about it before but...

1) the window has dirt on it

2) i scrub the dirt with brush head

3) i rinse the dirt that has now mingled with the water to become dirty water

so, if im not scrubbing and rinsing enought the dirty (and no doubt high ppm) water is gonna leave hard water marks of the glass 

WHOOPS

looks like i'll be getting my ladders out alot in the near future for some hard water mark removal 

god im stupid 

[dazmond]

i always rinse brush off after a good scrub of the window making sure i rinse all the way down from the top edge.in this weather with all the dust about ive been rinsing twice on dirty windows.

my flow control is on 60 all the time.i use 5 mm extension hose and pencil jets.water is always 000.

im about 80% WFP/20% TRAD and use 250-300L ON A FULL DAY.

I very rarely get any problems apart from the odd leaky seal here and there.

[GB Window Cleaning]

i always rinse brush off after a good scrub of the window making sure i rinse all the way down from the top edge.in this weather with all the dust about ive been rinsing twice on dirty windows.

my flow control is on 60 all the time.i use 5 mm extension hose and pencil jets.water is always 000.

im about 80% WFP/20% TRAD and use 250-300L ON A FULL DAY.

I very rarely get any problems apart from the odd leaky seal here and there.

thanks daz, what do you mean by leaky seal mate? as in glass rubber seal?
 
thanks

[GB Window Cleaning]

but one thing that my theory doesnt explain is why doesnt rain create hard water marks when it mixes with the dirt in the glass 

[dazmond]

yes rubber seal GB.OCCASIONALLY i get water trapped in a top rubber seal and it runs leaving a small line of spots when dry!!i think we all get it on the odd window.

[GB Window Cleaning]

Daz... oh right i know what you mean now mate 

so what do you think to my theory's mate?

[GB Window Cleaning]

one of my windows at home is very dirty it rained the other day and the rain spotted the dirt along the bottom of the glass.

so to test my theory i have just buffed the dirty water marks off with a scrim and they same off easy! so why as my PURE water stained my custys glass? it wont buff out ive tried?

im very confused about dirty water and ppm of dirty water 

[GB Window Cleaning]

anyone got an explanation about dirty water tds? 

i know im annoying but its bugging me  :

[JSMC]

so how you remove these marks ?

[GB Window Cleaning]

so how you remove these marks ?

i havnt! they wont come off  i think i will need to use my hard water stain remover in the end

[Nameless Drudge]

You have created the dirty/hard water via the pure dissolving the muck on the window and not rinsed it off properly,allowing it to collect at the bottom. Simple as that.

[groundhog]

my flow control is on 60 all the time.

im about 80% WFP/20% TRAD and use 250-300L ON A FULL DAY.

You must only work about 2 hours a day then!!!!!!!!!!  :

[dazmond]

to use 300L on a full day i would have to work 7 hours on the glass to be coming home empty!i was pleasantly surprised when i realised i didnt need 500L A DAY because some of you were saying before i went wfp id run out at lunchtime with only 250L!

[groundhog]

to use 300L on a full day i would have to work 7 hours on the glass to be coming home empty!i was pleasantly surprised when i realised i didnt need 500L A DAY because some of you were saying before i went wfp id run out at lunchtime with only 250L!

There must be something seriously wrong with your pump then Dazmond!!!!! I have a 400ltr tank at the moment, but as soon as I get a bigger van I'm going to fit it with two 500ltr tanks so I can work all day without having to refill!!