So I have been working on my setup here I am wanting to a Deep water culture grow. This is a picture I designed (slightly poorly) I suck at paint. Basically I want a 3 5 gallon bucket setup with one tote for a resevoir, One nice air pump running into 3 stones in each bucket. I wanted to install this valve system to make it easy for me to drain the water out and replace with fresh really easily, I will be doing this all myself with stuff from lowes probably. I'm gonna use a 600 watt light with 60k Halide and 90k High pressure sodium bulbs, and a 74x74x74 Grow tent. I'm growing in my house somewhat near the thermostat(hopefully not an issue. It's a pretty decent size house). Will be using a filter etc although smell is not a huge concern, but ultimately don't want my clothes to reak or anything. I was just hoping if anyone could maybe notice any mistakes or any recommendations on products like the stones etc maybe.