Can;t figure this one out.Took out old j bend pipe 1.14 inches,the replacement doesnt fit the connection to the supply pipe come from the wall.Any new j bend I bought doesnt have the flange already affixed to the new one.There is a 1/4 in lip around the existing pipe that comes out of the wall and unable to get a new flange to fit.

What am I doing wron?

Haven't a a clue as to what you are trying to describe to us. We need a picture to make some sense out of it.

You might not be able to find a J-bend that will mate to your existing trap arm, best thing to do would be to replace both as a pair.

For best results, you're usually better off replacing the complete trap from the wall
stub-out to the tailpiece but there are several different trap designs and connections.

Here's one type:


e-plumber
-----------------------------------------------------------------------------------------------------------------------------------

"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

Who drew that picture? The rubber gasket on the "J" bend's outlet goes under the "flange" on the wall bend, not above it.

Good eye hj.
According to the new and improved IPC, that type of trap is now legal to use, our code prior prohibited mechanical fittings after the trap seal.

e-plumber
-----------------------------------------------------------------------------------------------------------------------------------

"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

nothing wrong with that type of trap. if that joint leaks it will be noticed and easily fixed since it is in an exposed area.

- - - - - - -

PLUMBERS "Protecting The Health Of The Nation"

there's plenty wrong with that kind of trap. they are illegal in MA.

and again i say what is wrong other than a state that spends hundreds of millions and many years on a project for it to fall apart almost as soon as it is put in use doesnt allow them?

and what is their reasoning behind not allowing them ?

if they are concealed then i agree with them not being legal but other than that there is nothing wrong with them. i have yet to hear a good argument for not using them.

- - - - - - -

PLUMBERS "Protecting The Health Of The Nation"

Nor do I!

- - - - - - - - - - - - - - - - - - - -

Since 1995 (3 years before Google started) PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]

MA didn't spend hundreds of millions on a tunnel, they spent thousands of millions. 16 thousand million (16 billion) and not finished yet!
taxpayers in TX, CT and AZ all chipped in to help pay.

I believe it's because the slip nut gasket (after the trap seal) on a typical tubular trap can possibly
dry up/deteriorate and permit sewer gas to escape from the drainage system into the living space.

e-plumber
-----------------------------------------------------------------------------------------------------------------------------------

"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

And before that would happen the joint would start leaking water and would be replaced or repaired. Then since that joint is typically either a brass ferrule or neoprene plastic, it wouldn't "dry up and deteriorate" anyway.

Here is a corrected version of E-Plumbers picture.



- - - - - - - - - - - - - - - - - - - -

Since 1995 (3 years before Google started) PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]

The only other comment is that I never connect the outlet slip nut directly to the pipe. I use a DeSanko/Marvel/Whateveryouwantcallit trap adapter, and the washer is a metal ferrule or a poly washer.

Hey I wasn't going to spend that much time fixing it!

- - - - - - - - - - - - - - - - - - - -

Since 1995 (3 years before Google started) PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]

If that's the case, what would be a *logical explanation why not to have, (according to
some Plumbing codes) a mechanical fitting, (slip nut joint) downstream of the trap seal?
*Besides the fact that it makes it more difficult for DIY's to do their own repairs.

e-plumber
-----------------------------------------------------------------------------------------------------------------------------------

"The society which scorns excellence in Plumbing as a humble activity and tolerates shoddiness in philosophy because it is an
exalted activity will have neither good Plumbing nor good philosophy: neither its pipes nor its theories will hold water." -
John William Gardner 10/8/1912 - 2/16/2002

Repair your leaking Plumbing fixtures ASAP [www.theplumber.com]
This slow drip will waste 7+ gallons of water per day.

That is the only logical reason in my mind! Job security!

- - - - - - - - - - - - - - - - - - - -

Since 1995 (3 years before Google started) PlumbingSupply.com has been THE best plumbing supplier on the web. Please visit our sponsor [www.PlumbingSupply.com]

The official reason is that a rubber washer or "O" ring seal on the outlet can dry out and leak. The real reason is that strong union states/areas have that requirement to limit DIY installations and repairs, and make the initial installations a bit more expensive.