My new house has a pool with several Jandy valves. One is a "never-
lube" and works very nicely. The others are not "never-lube" and are
now very, very stuff. .Can I lube them? If not can I replace them with
"never-lube" by simply taking the mixer out (removing the top screws)
or do I need to glue the entire new valve body into the line and cut
the old one out?

-Robert