Repair Options for Foggy Thermal Double Pane Windows

Moisture, condensation or fog between insulated glass windows, double or triple pane, indicates that the seal on the window's glass has failed.
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Most modern windows are double or even triple pane glass. The glass panes are sealed and sandwiched between a metal spacer that contains silicon desiccant. It is called a Insulated Glass Unit (IGU). Over time the sealant begins to leak and moisture begins to collect between the panes. When the silicone desiccant can't absorb the moisture, then fog/condensation can develop on the inside of the glass. Eventually, the inside of the IGU will become etched.
Some companies drill a hole in the glass, squirt a cleaner between the widow panes, dry it out and then plug the hole in the glass. I didn't consider process a repair. If the seal is leaking, then it will continue to leak, allowing moisture between the panes. It's just a band aid... IMHO.
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[@MarioDallaRiva]

Ugh! The dreaded fog inside the double glass.
Well done 👏🏻

[@Know-How-Now]

Nice to hear from you, Mario!

[@pirihern9329]

Great info . Thanks

[@Know-How-Now]

You are welcome.

[@FA-cd2de]

Use a flexible spackle/puddy knife, I use about a 3" type along with a can of window cleaner called "spray away". I use spray away on the puddy knife for a lubricant and press against the silicone and rock the blade side to side as it plunges and you hear it hit the frame, then move along the whole perimeter

[@peoplethesedaysberetarded]

Hmm. I enjoy watching your videos. Yet this one seems a bit bleak: “a thing failed, and wow, the new replacement they make isn’t as good as the original.” That’s a sad reality.

[@Know-How-Now]

I do have some failures that I almost always over come. I stepped back to go another route with removing the IGU because I thought there is a risk of cutting myself. If it wouldn't have been so easy & cheap to call Home Depot and order a new sash I likely would have tried to break the IGU and remove it in pieces. If the IGU is held in place with double sided glaziers tape, it is my understanding that it is easier to remove it. I suspect that a lot of my windows are leaking and the silica desiccant is just absorbing the moisture. I would be scared to use an IR camera to have a look at them. Cardinal Glass, one of the IGU manufacturers in the US has a 20 year warranty on their units. I think the newer IGU's might be a little better.
The real lesson is that if you are buying windows, ignore the sales pitch and read the warranty. Pick window company that your know is going to be in business for along time and will honor that warranty.