Repair PVC Water Lines
It may take a decade or more for one to know whether or not the plumber you hired provided quality work. It is hard to install water or drainage systems that will not work.
The question is will the workmanship hold up to stresses from temperature and pressure changes or stresses from a shift in the ground or structure. The two leaks that have formed in these pool lines occurred from not clean cuts in the pipe. Rather than cutting all the way through the pipe the last little bit of material holding the pieces together were broken or sheared off.
Doing this way left a little nipple that did not allow for the pipe to be pushed into the fitting all the way and also caused a stress point in the joint. It took approximately eight years for the effect of poor workmanship to show up in this particular job.