You're concept of cooling is flawed. It is not efficient to try to "cool" the miners. What you have to deal with is getting rid of the waste heat. Two fundamentally different principals.
Also, please describe your "rigs", it looks like you're talking about GPU and this is the Bitcoin mining forum which means ASICs.
right, sorry. It's a 6 gpu rig with open air frame. I have 1060s to 1080ti in there. A rig runs around 800-900kW.
If your rigs are using 800-900kW power, no wonder you have heat problems. That's about 256 Tons Of Air Conditioning. 900kW at 240Vac, .9pf = ~ 4100 Amps? This is not in an apartment, or your power consumption numbers are off.