Almost?
For what it's worth, I had a heck of a time here in Maryland when I was asking for "Schedule 26" pipe. Most didn't know what I meant. I found out that "thinwall" is a better term around here, and it seems to be used widely by landscapers/irrigation companies. Once I found thinwall, "Schedule 21" was all I could find and the markings are "SDR21" and "ASTM D 2241". I think it's a wee bit thicker than 26 since the 2 liter caps only go about halfway in but it seems to work with a generous amount of glue to seal the cap "ridges". I'm using 1 inch pipe, btw.
|