Posted by Jiles on December 03, 2011 at 09:38:47 from (68.62.164.204):
I posted earlier about problems with Silicone Caulk on the roof of my barn/shop.
While on the roof, I notoced something I have never seen. The 3 inch PVC pipe that extends out roof, is inside an all metal roof flange. I understand the purpose but don't think it was installed properly. It appears that the waterproofing between the PVC pipe and the Metal Flange is accomplished by bending the top edge of the metal pipe down inside the PVC pipe.
It appears to have been POUNDED in place, with the PVC pipe being app 2" below top surface of metal flange!
The metal appears to be soft and I assume it is a Lead alloy??????
Other then the small leak, I believe the 3" PVC is essentually a 2" because of the sloppy installation of the wrinkeled up metal.
Is this something I should be concerned about--I am having NO Vent problems?
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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