cat fever
Elite Member
Let's be clear that "poly" refers to a lot of different things.
Poly Butylene is a product with wide spread use many decades ago. It has a problem of becoming brittle and flaking from the inside out due to exposure to chlorine in municipal water supplies. The high failure rate of poly butylene has given all poly a bad name.
Polyethylene and better yet, High Density Polyethylene (HDPE) is a much different product. It does not react to chlorine and other chemicals that can be present in water supplies. It is flexible and exceptionally durable.
I would absolutely recommend using the appropriate pressure class HDPE for long water supply runs. If it were mine I would use 500' rolls. At every joint along the long run I would install a brass 1/4 turn ball valve with integrated barbed fittings. I would clamp the line to the fittings with stepless (continuous band) Oetiker clamps (two per barb with the crips offsets from each other.
For reference, the City I am in does not use gasketed PVC pipe for it's water supply system. They use gasketed ductile iron mains and copper or HDPE service lines.
Not sure but can polybutylene even be found/bought anymore?
To be specific, mine is the Polyethylene. (blue) I do prefer the compression fittings that use a stainless steel sleeve that goes inside the pipe. Put together properly, it's never coming apart unless you want it to.