Lol, cap the horizontal grid either side into a T, one side entry, one side return. Get old bar fridge, water pump and hose. Drill holes in bar fridge, coil hose inside, with one end connected to intake and return respectively.... with pump somewhere in between. Use one of the commercial temperature controllers to switch the pump on when a set temperature is reached. TA DA!
Cape Town, South Africa.
Hi. I'm back.