Situation: rough in valve with 1/2 in NPT. I sealed the threads with Teflon tape and some pipe dope (probably not enough). However after turning on the water, there are some threads with leaks. Can I unscrew the threads, remove Teflon+dope*, and reseal it again?
* Pipe dope can be removed using some things, such as solvents, vinegar or heat from what I could find. Are these sufficient to make the thread clean again so it can be properly resealed?