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Thanks for the resource!
IoT pH regulator with Arduino and Blynk
Admittedly, PVC isn't a perfect solution. However, I do believe this usage of PVC is not a health hazard.A few things I've found in my own research: PVC pipe is NSF (National Sanitation Foundation Testing Laboratory) approved for human drinking water use.The higher level of thickness (we're are using SCH 40) decreases penetration depthPVC piping is rated food safe, including piping used extensively for the dairy, canning and beverage industries Additionally, 95% UV exposure is on the exterior face of the pipe where no water or plant share contact. I would be interested in reading the research you're referring to - can you post it here?
Quite welcome - please let us know if you end up making one of these yourself!
Quick Start to Nodemcu (ESP8266) on Arduino IDE
Sorry, I'll updating the images soon to correspond better to some of the updates/adjustments. I've found that plastic bottles work better than 3" net pots because they are longer and extend further to the back of the pipe (to better catch the water flow). Also, I dig reusing garbage in any way possible in lieu of buying new stuff. Media is definitely needed to hold the roots in place like you said. And additionally to help house beneficial nitrifying bacteria.
Thanks! The second objective after cost reduction was space reduction. This design can fit pretty much any indoor space.
Agreed. Though the cost would increase quite a bit and the general goal for this project was to get the cost down to bare minimum. Let me know if you end up building on of these - would love to see it!
Aquaponics - Minimal Apartm...View Instructable »
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