I thought this question would have an obvious answer, but I can't find anything that specifically says to do it or to not do it.
Want to install a whole house water filter under the kitchen sink cold line for extra filtering of drinking water.
The current line is copper, to 12" of braided flexible line, to faucet line. The copper distribution line has the usual 3/8" compression. Faucet has the usual 1/2" FIP.
The water filter housing has 3/4" female outlets. With schedule 40 PVC fittings and a short section of 3/4" schedule 40 PVC pipe, I made 3/4" male to 1/2" male threaded outlets, in the picture. That would give me 1/2" threaded male connections on the water filter housing to connect the braided flexible line(s) to.
Is threading the stainless braided flexible FIP o-ring line onto MIP threaded PVC ok? I think so, but looking around the internet, and reading 20+ searched threads on here, etc, I can't find a picture or video of anyone actually doing it.
They always add a metal shutoff valve, and then the threaded connection is metal to metal. But I've never seen anyone say do that to get a metal to metal threaded connection. They just say they're doing it to add a shutoff valve.
I've seen warnings about using metal ferrules on plastic lines, and warnings about using male metal threaded fittings into female plastic threaded fittings, and don't use teflon tape or dope on o-ring line connections, etc. I've never seen a warning about this, but I've also never seen anyone do it.
And before anyone says it, haha, yes, I'm using (schedule 40) PVC not CPVC. It's for cold water, and a temporary setup. Planning on putting the filter in-line later in the basement when redoing all the CPVC down there with PEX.
Want to install a whole house water filter under the kitchen sink cold line for extra filtering of drinking water.
The current line is copper, to 12" of braided flexible line, to faucet line. The copper distribution line has the usual 3/8" compression. Faucet has the usual 1/2" FIP.
The water filter housing has 3/4" female outlets. With schedule 40 PVC fittings and a short section of 3/4" schedule 40 PVC pipe, I made 3/4" male to 1/2" male threaded outlets, in the picture. That would give me 1/2" threaded male connections on the water filter housing to connect the braided flexible line(s) to.
Is threading the stainless braided flexible FIP o-ring line onto MIP threaded PVC ok? I think so, but looking around the internet, and reading 20+ searched threads on here, etc, I can't find a picture or video of anyone actually doing it.
They always add a metal shutoff valve, and then the threaded connection is metal to metal. But I've never seen anyone say do that to get a metal to metal threaded connection. They just say they're doing it to add a shutoff valve.
I've seen warnings about using metal ferrules on plastic lines, and warnings about using male metal threaded fittings into female plastic threaded fittings, and don't use teflon tape or dope on o-ring line connections, etc. I've never seen a warning about this, but I've also never seen anyone do it.
And before anyone says it, haha, yes, I'm using (schedule 40) PVC not CPVC. It's for cold water, and a temporary setup. Planning on putting the filter in-line later in the basement when redoing all the CPVC down there with PEX.