Homepage › Forums › Fix-it Forum: Home Improvement & Do It Yourself Repair Forum › Plumbing This topic contains 1 reply, has 0 voices, and was last updated by Ron Hawtree 20 years, 5 months ago. Author Posts September 14, 1997 at 2:06 pm #10486 Tim Jetter Incoming water to tank on toilet, plastic on plastic fittings leak. Tried teflon tape, still leaks. Any suggestions? September 15, 1997 at 12:28 pm #76302 Ron Hawtree Replace all plastic fittings with metal whereverpossible. If not possible, use new PVC (or nylon) fittings(ensure you’re wrapping Teflon tape correctly) and becareful not to over-torque connections. Author Posts You must be logged in to reply to this topic.