One final note if you go down the plumbers tape (PTFE teflon) route.
When wrapping it a round the threads on the cups - stretch it really tight so that the threads show through - it should almost look like you have applied some white paint - basically don't loosely wrap it around the cups a few times.
One final note if you go down the plumbers tape (PTFE teflon) route.
When wrapping it a round the threads on the cups - stretch it really tight so that the threads show through - it should almost look like you have applied some white paint - basically don't loosely wrap it around the cups a few times.