OK, I finally got a chance to take some pics. My air pump which is Active Aqua Commercial 12 112 watts 110 lpm is hooked to column in res. Also located above water to avoid any water making it back to the pump. The valve is installed in the very first line from the air column and blue tubing (prob. 1/4 turn closed to restrict some flow. Then it connects to fitting in grommet and goes into room to first waterfarm, then all of them connect and last waterfarm is routed back to other line in res. One blue and one black. All waterfarms have an air tube with drip ring and there are two small round air stones in the res.
Thuwadpumper Reviewed by Thuwadpumper on . GH WATERFARM USERS: SIMPLE RECIRCULATING SYSTEM Ok so I was at my hydro store yesterday and the BRAIN pulls out this kit from GH that makes your w/f set recirculating!! Ordinarily this isn't very exciting news EXCEPT...... Get ready.......:jointsmile: It uses an air pump and drip ring set up to move the water through the system. You do NOT NEED A WATER PUMP! Let me repeat that part: YOU DO NOT NEED A WATER PUMP. IT RUNS OFF A BASIC AIR PUMP. Rating: 5