tthe only reason i wouldnt use ice coolers like a bottle of frozen water, is just the maintence value. I dont see a pump making your res temps rise signifigantly, i used to run a pump 24/7 in 5 gals and it made the water feel warmer, but it really was a temp difference of about 8 degress about 69 room temp, water always is cooler then roomtemp left alone, i have always found the best bet leaving the res on the floor, i dont think the pump is the problem so to say it contributes a little bit, better cooling methods other then off time on the pump is your best bet like suggested put it on the floor, out of the light, insulate it, these all help out alot more.
JackdaWack Reviewed by JackdaWack on . Idea for cooling res. Hey all. I'm currently growing in soil but will be switching to hydro in a couple months. I plan to do DWC in a rubbermaid container. It will be in a cabinet in my basement. Im wondering if it would be worth it or even practical to keep my water temps down by running a water pump (in addition to an air pump) with 10-20' of hose running under the cab and along the cold concrete floor then back into the reservoir. I also thought of maybe doing the same thing and running everything past my air Rating: 5