So as the title says, I'm running a 4 bucket (5 gallon buckets) DWC set up. This is standard DWC and NOT recirculating system, so its four separate buckets and each one has one plant. Is there a way to chill the 4 buckets without buying a chiller for each bucket? I know I could convert to recirculating and just cool one reservoir, but I'm not really ready for that yet. My current system seems to work really well so why change it. I'm just concerned about my bucket water temperatures. They are getting close to being too warm.