[biosurfer1]

I am replacing the handles on my roman tub which has been a joke in complexity and length thanks to the dumbass valve companies, but that is for another discussion.

I have to replace the valves and I'm not sure if what I'm seeing is normal or was a shortcut when the house was built.

The copper pipe coming out of the wall is 1/2", it is then reduced down to long spooled 5/8" run, then goes back to 1/2" at the current valve.

My question is two fold: Is there a good reason the pipe was reduced at all? Why not just 1/2 the whole way? Pressure related?

Also, from the pipe coming out of the wall to the actual valve was ~2ft. yet the original plumber has about 5ft of the 5/8" pipe spooled up before the valve right now...any reason for that? maybe just in case the tub handles were installed some other place than where they are currently (close to the wall)

I can take a couple pics if I didn't accurately describe things...thanks!