- Reaction score
Any general rules for using which, when, why? Or the opposite, why /not/ to use which, when?
I remember a time when I was using wicking and the old nasty grey ProDope. Now I'm using tape and Megaloc on all threaded metal fittings, dope only on pvc.
Then, for assembling lav drain to tailpiece, then tailpiece to trap, then trap to trap-arm, then trap-arm to wall drain outlet, all of which are slip joints with a gasket/washer, use only teflon tape, or use nothing? And no leaks if done properly?ONLY tapered pipe threads require a thread sealant. Slip nuts, compression fittings, flare fittings, ground-joint unions and any fitting that has a gasketed surface does not need any thread sealant and the use of a sealant is often the cause of leaks.
Well now I'm /totally/ confusedInteresting. I was always taught to dope all unions. So all traps, tailpiece washers, and all that...all doped. I've had sink traps assembled by others that were tight, but no dope, and leaking. I've disassembled and doped and retested and all OK.
And my preference for Megaloc is it's approved for plastic pipe (while some other dopes aren't) and easily washes off clothing.
Hey, ask 10 plumbers and you'll get 10 different answers. Every person has to try different methods and see what works for them. As individuals, there is no hard, fast rule for all to adhere to. What works for me may not work for you.
I appreciate your patience. Can you help this amateur and define "installed right"? Plumb and level and straight I know. Round and smooth I understand More than hand tight, or snugged up, or... ?Drain tubing should never need anything except the slip nut if it is installed right and the tubing is round and smooth.
This is awkward, but...
It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.