I reuse mine. I just jump start it beginning of the season with Mykos Extreme and Performance Organics Edibles granules watered in around the outside of my 30 gallon pots. Works like a champ. 
Easy peezy.
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I did not but I had like 8cu ft this spring which has lasted me until about now
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Apologies for the necro post, but this seems like a good group to ask about hempy.
Iâm switching from flood and drain w/ rockwool to hempy, and I was curious about what kind of ratios people are running (perilite/vermiculite/coco or peat) for a salt nutrient grow? Also, Iâm curious about the pros and cons of different container sizes?
From what I have read, watering once or twice a day in flower is the standard. If anyone has set up an automatic watering system, information about the materials used would be most appreciated.
100pct perlite. works every time as long as the nutes and ph are solid. no real issues. very rarely i run into some root rot if i get the drain hold plugged or i didnât wash the perlite. easy fix, flush and 30ml per gallon of peroxide. make sure you wash the perlite and so far the best has been medium course growit! #3. i think root rot was more common in the 5 gallon buckets, but those were run in pretty hot temps and i wasnât washing the perlite then.
iâve run this with gh floranova or gh maxibloom. solid both ways. i water every 3 days in 2 gallon or 86oz. iâve also run 5 gallon and those can go 3 to 5 days before watering again. the buds get a little bigger between the 2 and 5 gallon but I think you can get the same yield either way. this last run was in 86oz food containers. it worked just fine and buds were the same size as the 2gallon. i like 2 gallon the best.
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Thank you brother!
When you wash perilite, do you just rinse it off, or use a solution?
i take one of the old 5 gallon bucket hempyâs and fill it with perlite, but you could use an old trash can with a hole in the bottom. i then run hose water over it until there is no white residue powder coming out the hole at the bottom. I tilt the bucket a few times because the powder will collect at the bottom in the water and you can just pour it out the hempy hole. then do more hose water, repeat a few times. when this is clean, i dump phâd water over it. when i started doing this i stopped getting stressed plants when up potting from cups/solos to the hempy bucket. it doesnât take too long and I run 12 2-gallon plants at a time or so. i have also reused the perlite, but i think itâs better when there is less coco coir involved. the beat up coco isnât really friendly to the roots. I try to use 6oz cups for my seedlings, but solos workâŚitâs just more work to rinse the already used perlite. when filling the hempy buckets, i donât use the perlite at the bottom of the bucket. it will have the most powder. just sacrifice the last 2 inches of perlite in the bucket, but you can run a lot of perlite and just sacrifice the 2 inches at the end of the wash process.
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Thank you so much, this is exactly the info I was looking for!
Last question for now, do you just trash the non reusable stuff, or can it go into the yard?
lol, idk. i just dump it out on the patio or leave it in the bucket until next time. i guess it goes into the yardâŚthe yard guy blows it to oblivion. maybe the only concern is inhaling it. ohâŚbtw, wear a maskâŚput unused covid mask to work. perlite is basically glass from what i gather.
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I just got a huge 110L bag of perlite the other day. What I do is rasie it up on something thatâll drain a bit (eg: milk crate), stab the bottom in the lowest places - where water will drain to, cut open the top, and rinse it very well with a spray nozzle. This is to wet and knock down the dust. From there, this time, I actually âwashedâ half of the bag by putting large amounts of it into a 100+ liter tote half filled with water and agitating it, then scooping it out into another tote. The amount of white sludge that was at the bottom of that tote was nasty.
Anyway, if you donât need such a large bag, it might be easier. But with a bag this big, I realized that just spraying it with a garden spray nozzle from the top doesnât rid the dust well enough - it stays in the bag.
Like splinter said, you donât want to breath in the dust from this at all. Wet it before handling and/or wear a mask. I donât like the stuff at all.