Leaky plastic connectors (threads, not pushfit) on water filter

[ahardy42]

I replaced the filters on my RO water filter and the system has sprung two leaks. Both are from the 1/4" thread connector on the pieces of the filter they connect.

One is a plastic filter housing and I've tried it with and without PTFE. The other is on a magnetizer unit which is metal. I've also tried PTFE tape on the thread, but no joy. I've tightened them up as much as I dare, and they look to be fully screwed in.

Any tips? I'm a bit of newbie to this and only do the filters once a year at best, so i have serious little experience to draw on.

Thanks

 

[terryplumb]

How many turns of PTFE are you wrapping around the threads,you may need more.

 

[ahardy42]

Well, more than one or two. Maybe five or six? I'll give it a try with 10 or so. I was worried they'd just stop it screwing in.

 

[Daveydub]

Or you could skip the ptfe and put a rubber washer in the fitting, 2 if necessary