i was planning on using a 12" extennsion.. the parts except the ball valve (nipple, elbow, and extension) were only about $15.. just the drilling of the hole and ball valve are the pricy components
looks like the listed OD of the 1.5" black pipe is 1.9".. now im guessing that is the OD of the pipe itself.. not the threaded portion.. what size hole would you drill for that..
if i use a hole saw.. cut a 2" hole.. and use a floor flange to connect the pipe.. would that work?.. will the floor flange create a good enough seal against the outside of the drum?.. can i put some high temp silicone there or something?
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