"Fred" wrote in message
...

I've done quite a lot of plumbing in my time but not in the last few
years.
Am I correct in saying the push-fit variety have a rubber seal in them.
What's the life expectancy of this seal, just that a compression fitting
with a brass olive sounds a far more permanent solution.

With the acidity of our water here the plastic O ring lasts a lot longer
than the compression joint.