Need help identifying this

Cleaned with wfp, so looked terrible. Scrubber and squeegee, same thing. Unger rub out then reclean, same thing. What is it and why can’t I clean it?

@Henry was the one that posted that thread i believe.

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What was it called, I’ll read it. Really aggravating. They told me the last company did a poor job…they were right. Anything I can do to get it back to looking better at least?

Hi Guys,

Thanx for the invite. Without being able to touch and taste it I can’t be absolutely sure. But it looks like first surface pyrolytic that was chemically damaged by hydrofluoric acid. If that is the case there is no fixing it. It be one dead duck.

Sorry about that. But at least you didn’t kill it.

Henry

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what a mess

Thanks Henry and everyone else. I’m glad it wasn’t me, but it’s a pain in the ass. On a side note this job sucks all around. I severely undergraduates underestimated the job time. It’s a dry- vet building that hasn’t been cleaned in years. WFP with constructor brush didn’t get all the run off from the building so every window had to be hand cleaned, under the dry-vet run off is hard water on almost every window. I’ve shot myself in the foot on the price. Live and learn I guess. I’m 12 hours in and still have a lot to do. I expected to be finished in 10-12.

On a separate note… give me your input on something. Since it is my fault for underestimating this job, I can’t decide how to proceed with the pricing. I’m not technically lodging money, but I bid it at paying guys a certain amount for a certain time. Should I explain the situation about having to ladder every window 2nd and 3rd, and hand cleaning as opposed to wfp from the ground and raising the price half way through, or just take the hit as is and finish it and explain that it is going to take longer then originally expected. I’m torn because I don’t feel right raising it on them, but I had no way of knowing the hard water was beneath the caked and baked dirt. Before pic attached

not the worst one but an example.

I would stick to the price you gave them.

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If it were me, I’d stick to the price, otherwise you could send someone off into a rant about bait and switch.

Next time you’ll just have to do a better job of going over windows like this and maybe try cleaning a window to get an idea of what’s underneath. That’s how I do it now, on new estimates.

You never know what’s under the crud, until you look.

I do the same thing. I learned that the hard way.

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so how did you end up cleaning that stubborn window? was it hard water stain??

It was baked on dirt covering hard water. Hand cleaned every pane, scrubbed hard water with unger rub out and scotts non abrasive blue pads. Took forever. That job sucked, however, it was a very valuable lesson so not a total loss

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This is the only pic i could find quickly of that job

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those windows look awesome now, i’m just starting out and reading about potential problems i might run into. Thanks for sharing!