The perplexity of PVC-fitting failures  Many golf-course
superintendents resign themselves to repairing broken PVC-pipe
fittings. Some have humorously suggested that the task provides
built-in job security. But the problem is really no laughing
matter. The damage and cost of repair are generally proportional
to the size of the fitting. So while the repair of smaller
fittings is usually only a nuisance, the failure of larger
fittings can be quite disruptive. Lack of systematic reporting,
especially after the typical 1-year warranty ends, has masked
the magnitude of the problem.  PVC's little-known
susceptibilities The superior economics of PVC pipe and fittings
have made irrigation systems available where they previously
would not have been feasible. Steel pipe-the predecessor to PVC-
was limited by its expense and susceptibility to corrosion. PVC
pipe solved these problems, besides being easier to install.
Related Topics  Although PVC pipe has been quite reliable, PVC
fittings can be more sensitive to the cir