Drain Bulkheads For The Auto Siphon

I have had success with two very simple self-made bulkheads for the auto-siphon drain assembly. They both have worked well, that is, when they were properly constructed.

The first assembly works better for rubber liners.


I used this assembly for the plastic liner.


The procedures for each will be laid out at the new "step-by-step" blog. I am working on the details and want to be as thorough as possible before I start posting there. You can get a good idea of how to assemble them from the above images. The important thing to remember is not to cut a hole in the plastic liner(assembly #2) until after the adapters have been joined. Just screw them together from each side and the liner will stretch around the threads, making a perfect seal. Oh, and use plenty of silicon, you won't be able to screw the adapters together without it.