One School at a Time: Northridge HS wins Martin’s grant for hydroponics WNDU from "hydroponics" - Google News Learn more about hydroponics One School at a Time: Northridge HS wins Martin’s grant for hydroponics WNDU Visit potads uk classifieds for 1000's of 420 adverts
Thought I'd share this since it's completely eliminated my need to manually adjust PH.
Pictured below is a PH Down drip line controlled by a solenoid switch and a Milwaukee Instruments PH controller. It holds PH in my 20 gallon res at exactly what I set it to. I put some cotton in the brass nozzle at the bottom to get the flow down to about one drop every 2 seconds.
Cost was $148 and it took about 15 minutes to set it up.
View attachment 4353984 View attachment 4353985
Here's...
Automatic PH Control for under $150
June 23, 2019 at 03:23AM
Read more about this fix
Pictured below is a PH Down drip line controlled by a solenoid switch and a Milwaukee Instruments PH controller. It holds PH in my 20 gallon res at exactly what I set it to. I put some cotton in the brass nozzle at the bottom to get the flow down to about one drop every 2 seconds.
Cost was $148 and it took about 15 minutes to set it up.
View attachment 4353984 View attachment 4353985
Here's...
Automatic PH Control for under $150
June 23, 2019 at 03:23AM
Read more about this fix