Fernco to CI leak

[Plumber69]

Again, Fernco is a big company that makes thousands of things, among them, the thing some people have come to call a Fernco and meaning a thick rubber sleeve with two hose clamps on it. Sort of like everyone calling a tissue a Kleenex, when that company makes lots of paper products like napkins, pads, and who knows what. SOrt of like calling all cars a Ford.

Those are legal most places but ONLY outside of the foundation, underground where you have properly supported the two sections of pipe so that they don't sag and create a stepped connection. Inside of a building, you must use a banded coupling - the metal band around the whole thing ensures both ends of the pipe are kept in-line. A similar fitting is used to connect hubless cast iron pipe...the things are robust when installed properly.

I use to use these all the time, until i started getting callbacks, I was new at the time. Now I dont remember the last time I used one. I even argued with my boss not to buy them, now we have the slide one with the band and 4 1/4 lock bands. I even think mj's are the same price as these rubber things

 

[Jadnashua]

I even argued with my boss not to buy them, now we have the slide one with the band and 4 1/4 lock bands. I even think mj's are the same price as these rubber things

The ones with the four clamps on them are no-hub, designed for hubless cast iron. The extra set of clamps make it more reliable holding the heavy CI pipes and fittings. THey'll work on pvc, though.