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What is the best approach to a crumbling, pitted concrete garage floor? Not something that just needs a good cleaning and crack filling. Pits, let's say up to 0.5" deep, 1-2 feet wide.

I wonder if you need to disconnect the manifold for a vacuum test. A newly vacuumed mini-split held well for at least an hour but showed a steady drop after several hours. That's with the lowside continuously connected to the gauge.

Looking for ideas how to make a large tripod (or 4 legs) that meets the following needs: 1. it's at least 10 feet of the ground, 15 would be better 2. Affix this plate to top: It's 12 " in diameter. That would be the top of the tripod. Looking mostly for ideas how to affix 2x2 or 2x4's to the...

Anyone aware of brands/models that will honor the warranty for DIY-ers? Besides MrCool DIY models and (some) Pioneer models.

I am trying to pull vacuum on a newly installed minisplit. I can't get to - 25 " Hg no matter how hard I try. The vacuum holds however including when still connected to the pump. I understand that this is not a micron gauge but not getting even close to -30?! Is it the gauge or is it the...