Question for you plumbers

[NanciL]

I am installing a water filter on the incoming cold water supply to our washing machine.
The connection on the filter is plastic threaded female and I will be using a male threaded plastic (PVC) on PVC piping.

I have always been told that you don't use Teflon tape when you are going plastic threads to plastic threads.

Is that correct ? Or should I use it ?

The instructions with the filter say "never use pipe sealant or pipe dope"

just looking for the above question answered not suggestions on using PEX, etc

Jack L

[GENECOP]

Yup I use Teflon tape also...

[the_bear_II]

Well I was going to say use PEX it easier but to answer your questions.

I always use teflon tape. It seems when I haven't in the past the connection would leak or eventually leak.

The instructions caution against a sealant or putty because these are petroleum based and may eat through or damage the PVC.

So feel free to use teflon tape.