Jeff Knecht
Member
1. When installing the drain with silicone under the flange, the silicone gets moved around when the portal for the drain rod is squared up/aligned and final turns on the jamb nut are made. As I tighten the jamp nut the flange turns and the silicone is affected. Am I overthinking this? Is the silicone fluid enough that it retains its proper shape and thickness?
2. What are the proven steps to ensure, within reason, leak-free drain installation?
I have read frequently, on plumbing forums, to use 100% silicone under the drain flange, Teflon tape on metal flange threads with a slight amount of pipe dope on top. Also, it does not hurt to apply a little Teflon pipe dope between the rubber gasket and underneath the sink body. Is there a universal Teflon pipe dope that is safe to use on plastic, metal and rubber?
2. What are the proven steps to ensure, within reason, leak-free drain installation?
I have read frequently, on plumbing forums, to use 100% silicone under the drain flange, Teflon tape on metal flange threads with a slight amount of pipe dope on top. Also, it does not hurt to apply a little Teflon pipe dope between the rubber gasket and underneath the sink body. Is there a universal Teflon pipe dope that is safe to use on plastic, metal and rubber?