Originally Posted by paulk
I think you will find that PVC pipe - usually buried or inside a house- may tend to get brittle when subjected to UV rays from the sun. A couple of slaps from the genoa sheets, and brittle PVC may crack and/or shatter. I think the plastic shroud/turnbuckle covers sold by marine stores are made of something else - like vinyl- for this reason.
That's probably true, Paul, they likely are vinyl - but we've used standard black (ABSor PVC - can never remember which is which) plastic plumbing pipe on a babystay - and after nearly 20 years it's still doing the trick.. very thick walled.