[Brent Deines]

I agree with windshield on this one. We have played with large pit adapters and vacuum pumps a lot over the years and have found that they decrease efficiency, at least when using Delta Kits windshield repair equipment. Using large pit adapters also increases the amount of resin necessary to fill a break and utilizes an o-ring for the seal. I wish o-rings worked well for an end seal, but they require too much pressure against the glass to seal properly.

Again, I can only speak for Delta Kits windshield repair products, although we have had a lot of people trade in competitor equipment because of seal issues, so I think it is safe to say that the end seal has a great deal to do with how well a break fills regardless of the system used, and the vast majority of technicians that come to our training classes struggle with vacuum pumps and large pit adapters.

I will say that Delta Kits has done a great deal of research over the years and have found that for the most part all the new bells and whistles featured on modern windshield repair systems have not improved repair quality, so if old school is giving you better results with the system you use I say go for it.

At the end of the day it's all about the results.