I live in Florida and during quarantine decided I wanted to try growing peppers and onions in my office closet. I've spent the last 4 weeks buying all sorts of hydroponic solutions trying to figure out why my plants have always been closer to death than they are to life. Revane (https://amzn.to/3acGSqG). Little did I know that due to the Florida heat and my small pantry, the RDWC could actually cook your plants when the pump is not running due to the water that resides in the hydroponic system. I needed a way to cool my nutrients without investing in a $400 water cooler designed for (much) larger grow operations. I've read all the reviews about a small water cooler that would help control the temperature of my solution (https://amzn.to/2VcaBMg) and saw feedback from a controls engineer saying I forgot an expensive controller and must buy a simpler for 18 dollars - this one! (Review here for reference https://www.amazon.com/gp/customer-reviews/R3C88YUKT446KA/ref=cm_cr_arp_d_rvw_ttl?ie=UTF8&ASIN=B001JSVLBO). Well it was a stupid idea - this guy knows a lot more than I do. If you're reading this now and need a controller, spend the extra $15 and buy one (https://amzn.to/34EnDVH). However, if, like me, you enjoy jumping over your head, read on. You'll need a few items from your local hardware store - 1. 1-1/4" hole saw (https://amzn.to/2xnu5o7). You'll need it to drill a hole in each tank that will hold your nutrient solution. 2. Ordinary power socket - something like that.(https://amzn.to/3bcOYkd) 3. 3-prong extension cord, as you know, normal kind (https://amzn.to/2K4ImbZ) 4. If you have an extra computer -Having a power plug should be fine. Otherwise you can use a lamp cord. I used something like this (https://amzn.to/2K7GLSH) controller in a hardware store and found a suitable one (https://amzn.to/3bdfw56 ) 6. (optional) outlet cover because we're trendy and love aesthetics. together! 1. Cut off the end of the computer power cord (or similar) mentioned in the parts list - #4. The tail is the part that doesn't go in plugged into the wall (the female end, cut it off) Housing back a little and strip black (hot wire) and white (neutral) Lonely , trim it so that only two black and white wires remain. Wrap it with electrical tape just in case.2. Strip the black and white wires and connect them to the controller after loosening the screws in the terminals. Black (hot) connects to port 1 (nearest left when viewed from behind), white (neutral) connects to port 2. Tighten the screws to secure the wires.3. Connect the controller's sensor cable to terminals 3 and 4 - the order does not matter.4. Plug in the power cord connected to the controller and make sure it is powered on.5. If everything is ok it should start and show you the ambient temperature. Then unplug the power cord.6. Take the extension (part #3) and cut off the tail (female part). Then cut another 6-8 inches from it - we'll need some copper wire for the next steps. Put it aside.7. Take the mangled extension cord - the one with the plug on the left. Strip all 3 wires - white, green, black a little. Connect the white wire to the neutral screw (I used the silver one). The green wire goes to the green screw. Connect the black wire (hot, power) to the temperature controller, terminal #7. At this point you should have: a power cord (single-ended section) with the white and green wires connected to an outlet. The black wire of the power cord must be connected to controller port #7.8. Remember the part we cut off in step 6? Take it, pull the black wire out of the case and remove both ends. Connect one end to terminal #8 on the controller and the other end of this wire is now connected to the brass screw on the new socket (the one connected to the green and white wires). At this point you should have 3 wires connected to the outlet, green and white directly from the extension cord and black from the controller.9. make it look pretty! I leave it to you. Be sure to seal any exposed wires with electrical tape.10. Finally, you should now have three plugs: one from the aquarium cooler, one from the extension cord, and one from the controller power supply. Plug the aquarium cooler into a new outlet. Plug the other two cords into a standard wall outlet.11. Install the cooler to the bucket by sticking the probe through the hole and tightening with a wrench. Check for leaks! Congratulations, you are the boss. Go and grow!
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