I don’t do much deep mudding this is more of a safety feature than a necessity as the off-road park I go to most times does have some deep holes that the trucks dig out. It might be a shallow hole this week but next week it can swallow you up!
So, what size pipe do you guys use? Available to me at the local hardware store is 1 1/2 inch with all the necessary bends/fittings etc.
Secondly, do you find silicone sealant does the job? I was going to use PU adhesive sealant.
Last but not least, do I need to waterproof anything else? All my breathers are replaced and extended.

Any do’s and dont’s?

Thanks guys.