Here you will need to take the air stones out of their packages and set them in a container of water to pre-soak for a half hour or so. While the stones are soaking, measure the length of run from your air pump to your bubbler unit by determining where you will locate your air pump. Keep in mind that air tubing is cheap and it is better to have it a bit too long than too short.

Since you bought a dual feed air pump you will need to cut two air lines of approximately the same length. Place the air stones in the bubbler, one on each end of the tub. Take your measurements and cut the tubing, then attach the tubing to the air stones and then to the air pump. Put water in the tub, plug in the air pump and observe the system to make sure you have good bubbling from the air stones.

Little Hint: MORE AIR = BETTER GROWTH.
MVP Reviewed by MVP on . Building a Rubbermaid Hydro Bubbler Unit - Cheap and Effective Okay gang, here is a quick instructional thread on how to build a home made bubbler. I have seen friends use store bought units that are similar (google for Emily??s Garden). If you wanna see the concept, check out Greg Green's book "The Cannabis Grow Bible" where this idea is discussed as well. Getting started - first the parts list: (1) 10-gallon Rubbermaid Roughneck storage bin (Lowes $5.50) (1) ½ inch I.D. clear vinyl flexible tubing, 12? length (Lowes $0.50) (1) ½ inch Rating: 5