Install Update 1/26/23: There have been a few reported "gasket failures". I recently did a pressure test on one just to test the integrity of rubber to make sure it was not inferior for some reason. It held just fine all the way up to 50 psi, which is extreme considering it should be 1-2 psi max on a running sled. I'm starting to wander if my original spec of 6 ft lbs is too low on a 150lb wrench especially if quality and calibration of wrench is not the best.  Using an inch lb wrench will provide a more sensitive and accurate torque. I've always used an inch lb wrench and never gave it any thought until now.  So from hear on out please torque to 72 inch lbs when tightening the screws.