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All environmental factors are good RH 55, temps 77, leaf canopy temp 74 Sys 2 had ph rise from 5.8-6.0 with Ppm remaining steady at 360 Sys 3 had ph rise from 5.8-5.9 with ppm remaining steady at 260 Aeroflo had ph rise from 5.6-6.0 with ppm dropping from 500 to 490 (0.7 conv) What's...

After seeing a few farmers lose their crops to malfunctioning AC's I decided to post this simple DIY high temp shut-off that works for light controllers from 1-50 lights. NOTE: Be sure to size the contactor appropriately for the number of running amps. Ex. if it is rate at 30 Amps then you can...

I'm growing in the Undercurrent and have been battling this serious leaf curl on most of my plants. My EC levels are pretty low .3 and I have done multiple flushes. Has anybody ever seen growth that looks like this before?

Hi there farmers. We are building a 6400 sqft warehouse (60x100 useable space) with lots of power in september. Our plant count will be limited to 243 plants. We want to use all UC systems and are thinking about 4 flower tooms, 48 plants each, 30k light per room, with a 48 plant veg. We have...