How to keep your solution cool in the hot summer days

[Jjwineseone]

I've used a old hallway water fountain to cool my solution in the summertime. I mounted it on the wall outside of my grow room. It was pretty easy to reroute the supply lines through the wall with plastic tubing. The pipes go through the wall and into my trash can reservoir. I use rubber grommets to make a nice seal so no solution splashes out onto the floor during cleaning.