Hey Tead!
Over here on the edge of your property, letting your ugly dog sniff my hand...
What? This isn’t a dog?
I was wondering about the long tail...
Anyway, you don’t know me, but I just finished wading through 209 swampy pages of your highly entertaining, yet educational journal. I have to say I have thoroughly enjoyed my time spent here, and I feel like I know you a little now.
But brother, I’m surprised and dismayed that in all those pages, no one has brought something quite serious to, not just your attention, but to the larger community of growers who are following your lead.
And that is the fact that, although PVC pipe is very damn convenient, it isn’t one of the plastics that are safe for growing plants for consumption by humans or animals. There are toxic compounds that can be leached out of the plastic which can end up in the plant (especially if using a lower pH nutrient solution).
For information on which plastics are safe, and how to identify what you have, you can check out the following:
Grow Hack: Is That Plastic Safe for Hydro?
They even had an artist prepare this graphic:
But if, like me, you don’t believe much you read in High Times, this is from Nat Geo/PBS:
https://www-tc.pbs.org/strangedays/pdf/StrangeDaysSmartPlasticsGuide.pdf
Anyhoo, except for that, your trailblazing work into perlite/OC+ hempy has been most inspiring. I am happy to be a convert.