Plumbing advice on brass fittings

[S-3 Ranch]

Ok the hot water heater is full of sludge and has blown out the element
So I am cleaning it out and replacing the stock 1/4 turn valve ( it’s to small to emit the sludge) so replacement is 3/4 x 2” brass fitting to a 3/4 brass ball valve to a 3/4 x hose connect
Question is the instructions I got is to use both Teflon tape and pipe dope
I think that is over kill , but don’t want to flood the house, what say ye ? Pipe dope? Tape? Or both ?
I have some dope but no tape

[IvoryRoot]

I’d put both.

[mrc]

Overkill yes, but I always put a single wrap of tape and a little pipe dope just to be sure.

[Dspivey]

Loctite 567

[rowdybass]

Both !

[progater]

either one should work alone as long as the fittings are clean and tight. Water heaters are supposed to be drained each year to prevent sludge build up.

[S-3 Ranch]

either one should work alone as long as the fittings are clean and tight. Water heaters are supposed to be drained each year to prevent sludge build up.

I know , it was a round 2 it . I never got round to, out of site out of mind, but these new valves should make it hellaciously more better and easier

[TxAg]

You should use one or the other but never both

[merlin]

I use both, but you'll be ok with dope only. You can dope the inside threads also to be safe