How tight should pvc fittings be?

As the title states, how tight should i thread the pvc fittings into the bulk heads?

When i screw in the fitting for the 3/4 return plumbing into the bulk head it gets tight real fast. I can maybe do 3 full turns before i need to force it to go in further and it still goes in quite a bit but i don't want it to leak.

So should i keep it as tight as i could possibly get it or let it out some so its not as tight? Thanks

 

Are you using thread tape?

 

Yes, but I'm not using much and even without the thread tape its still the same tightness.

 

Just make sure you get at least 3 turns of tape on and tighten to bulkhead tight and you ll be fine.

 

Ok thanks.