How do I install a diverter valve in a bathtub?

[jimmy328]

Hello All,

I just bought a single family house that was built in the early 70’s. The guest bathroom tub/shower faucet looks like hell. I bought a whole new kit which includes the diverter valve, faucet, chrome backing plate, and hot/cold knob. I cut the existing valve out and now can’t the new one in. There are 4 ½ inch copper pipes that enter it from the left, right, top, and bottom. These pipes are not flexible at all; therefore, I can’t force in the new diverter valve. Even if I could, the space is so tight, I would have difficulty soldering the copper pipes. Any ideas before I call a plumber? I drew a rough sketch to show what I’m talking about.

Thanks in advance.
Jim

[johnjh2o]

What you need is slip couplings. They are the same as a standard sweat coupling with the exception of not having a stop. This allows you to slide the coupling onto the copper pipe then pull it back over the other section of pipe to make your joint.

John

[jimmy328]

Thank you John; I thought of this option but did not find such a coupling at the local competitive chain hardware stores. Perhaps I didn’t look hard enough or I should go to a plumbing supply store.

I went to a web site called Find a Local Plumber | Plumbers Directory to accept bids on this project if I can’t do it. One guy already called me and gave me a quote of $250. I may be worth it to avoid the aggravation.

Jim

[johnjh2o]

That may be the way to go. It depends on your ability to do the job. Only you know what your limits are. I'm sure most plumbers wouldn't be able to do your job. To each his own.

John

[jimmy328]

A trained monkey and patients could do my job (LOL).

Jim

[jimmy328]

I ended up calling a plumber and I’m glad I did. Both were great guys, did a fantastic job for $250, and installed my new water heater on the side for a reasonable amount.

Thank you John for your assistance.
Jim