Yes, he said that he would change out the weenie pump and use the Eco three in the central rez. A half inch stop valve placed on the insdie of the rez (which then connects to the pumping column) will help you to make the airflow as strong or as weak as you want it by simply adjusting the stop valve this way or that way.
Weedhound Reviewed by Weedhound 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