We dislike using fiddly PTFE tape to ensure a good seal on all the threaded connections. A lot. So now we use Jet Lube’s V2 Plus thread sealant for coarse threads, i.e. 15mm diameter water pipe and upwards to 2″ or so. It is not a thread locker, it is a sealant, and can therefore be easily unthreaded when the occasion arises. Approved for use in potable water.
