[williamgdent]

I clean an old folks home every year and it must have the worst glass in the world.
Each window is split into 12 panes and takes the full SL2 to reach the top windows.
There are 10 walls like the one in the photo.



Tried Fan and pencil jets and double and tripple washes to no avail.
The water forms millions of small droplets that do not run down the glass but that remain fixed.

Any help or advice  out there.

Bill

[Clever Forum Name]

Perfect test for vision.

http://jigsaw-innovations.co.uk

[Michael Peterson]

how high is your flow rate, I would think if high enough they would have to rinse leaving the glass with only pure water remaining, we don't use a controller and run the pumps flat out, I have some glass like this and they dry fine, I thinkits about putting that much water on the window there is not dirt left to dry badly

[wpclean]

When we changed from trad to wfp had some flats with windows just like these, and no matter how high the flow, or how much we cleaned them they just would not rinse !    Had to give them up   

[Dave Willis]

I would have thought that provided you chase the dirt down the glass, the remaining water would be pure and dry clean. You could try breaking the surface tension a bit of your pure with a drop of GG4 or Vision. Unlikely to be a miracle cure but every little helps.

[dazmond]

i have a few windows that are as bad as that on my round.i just rinse and scrub a bit more and they always dry nice and clear.i use vision too but im not sure if it makes any difference on the final finish than just using pure.

[Jonny 87]

Personally I no longer have any windows like this anymore, but I found increasing the flow rate played a major factor.

How much water do you use on this building? Increasing flow rate could be a good port of call.

[ascjim]

Surly it will still dry ok. 

[chris turner]

Commercial buildings always have pain in the backside windows.
Iv just finished a health center today that has vents above the windows that always cause spotting and the windows are seriously hydrophobic.
Iv scrubbed those vents, flushed them out yet they always cause a problem.
The second half of the building I decided not to clean above the vents, just to the side of them and the windows look much better for it.
As for the hydrophobic glass,  high flow and thorough rinsing will stop any spotting.

[Matt.]

I recently bought 10 lpm pump, had a few problems setting it up on controller so am running it direct from battery for now, the flow rate is brilliant, you do use a lot more water but working time is a lot quicker, I will sort controller out and prob run at 7-8 lpm,
These windows in question, look worst at the bottom of the glass, if so it could be stained off water limescale dropping onto the sill and splashing back, over long periods it builds up.

I took over a job that had a broken gutter with windows below,  the glass had a build up of white stuff down the middle with lots of splash marks on the glass, felt rough to touch, trad cleaned the window but it kept coming back, tried scraping it off but the same, tried a few chemicals and in the end put a bottle of vinegar in a small bucket and spent an hour just scrubbing with microfibre, left a few small marks but done the job, I was surprised

[jmb]

I recently bought 10 lpm pump, had a few problems setting it up on controller so am running it direct from battery for now, the flow rate is brilliant, you do use a lot more water but working time is a lot quicker, I will sort controller out and prob run at 7-8 lpm,
These windows in question, look worst at the bottom of the glass, if so it could be stained off water limescale dropping onto the sill and splashing back, over long periods it builds up.

I took over a job that had a broken gutter with windows below,  the glass had a build up of white stuff down the middle with lots of splash marks on the glass, felt rough to touch, trad cleaned the window but it kept coming back, tried scraping it off but the same, tried a few chemicals and in the end put a bottle of vinegar in a small bucket and spent an hour just scrubbing with microfibre, left a few small marks but done the job, I was surprised

Matt you ever tried viakal ? Used it before on really bad lime scale marks and it was great, cheers jon

[NWH]

Used to do a block of flats similar and water always dried badly along the bottom of the glass about 2 " high from the bottom of the pane,apart from going round them all by hand shifting the lime scale they had to put up with the odd blemish. Some glass is just bad quality and won't come good other good sheeting glass only has to see the brush coming and they clean up lovely. I would say it's leaching seals or just bad lime scaled glass

[williamgdent]

Pump is 1.8 gpm or 8.2 lpm run fully open through about 250 feet of hose on this one.

Thanks for all the replies guys,  Ill try a video today if I can get it to upload.

Bill

[rosskesava]

I clean an old folks home every year and it must have the worst glass in the world.
Each window is split into 12 panes and takes the full SL2 to reach the top windows.
There are 10 walls like the one in the photo.


Tried Fan and pencil jets and double and tripple washes to no avail.
The water forms millions of small droplets that do not run down the glass but that remain fixed.

Any help or advice  out there.

Bill

Do you mean all the water stays on the glass?   

If you spray a ltr of water on a window most of it won't all stay on the glass even if it is hydrophobic.

[Smudger]

I reckon that the glass is toughened, I do some commercial that were like this a good first clean with virosol/g101 etc, thereafter they were pretty easy/straightforward to clean

Darran

[williamgdent]

Hi Guys,
This is what I am talking about, When I rinse the droplets do not seem to move as they do on regular hydrophobic glass,
Hope the video explains more.
2400 panes of glass all like this on the building..

[williamgdent]

OK the video did not upload.. Will try again..   https://youtu.be/_c0tXi3a7Gw

Bill

[williamgdent]

Hi Windowwashed,

There are 2400 of these panes on the building to clean,
I am looking for an easy fix.
I clean lots of buildings for the company that owns this one and need to get an easy fix if there is one.

Bill

[cgh window cleaning]

I use to do a job that was a nightmare for Volvo cars  with similar problems to yours.
The glass I cleaned had a anti glare and reflective coating on it and the glass was alway warm.this ment the water dried back very very quick on top of that the powder coated frames would always slightly oxidise.

I found that avoiding the frames or giving them time to dry before doing the lower glass as well as cleaning early in the morning when the glass was cooler helped me.
With yours being a care home and the design of the frames this may not work for you .

[Rich Wilts]

I recently bought 10 lpm pump, had a few problems setting it up on controller so am running it direct from battery for now, the flow rate is brilliant, you do use a lot more water but working time is a lot quicker, I will sort controller out and prob run at 7-8 lpm,
These windows in question, look worst at the bottom of the glass, if so it could be stained off water limescale dropping onto the sill and splashing back, over long periods it builds up.

I took over a job that had a broken gutter with windows below,  the glass had a build up of white stuff down the middle with lots of splash marks on the glass, felt rough to touch, trad cleaned the window but it kept coming back, tried scraping it off but the same, tried a few chemicals and in the end put a bottle of vinegar in a small bucket and spent an hour just scrubbing with microfibre, left a few small marks but done the job, I was surprised

You  won't actually run at seven or 8 L per minute you're probably working at something more like 3 L.