THE CONCRETE JUST CRUMBLED!!!

We had to replace the distribution box on this homeowners septic system in between pouring his floor. The concrete just crumbled and it fell apart. I did not mind helping him out while we had the machines there anyways. We got his lean too on his pole barn concrete poured and radiant heat tubing installed and also installed a drain and septic tank and all the plumbing in his bathroom that was under the floor. This is a long video but packed with helpful tips.