Splitting air to the diffusers will need to be done at the pump at the or shoreline with a valve box. Splitting the airline under water will result in most or all the air going to the shallowest diffuser due to air following the path of least resistance or to the one with least head pressure. The more the diffusers are at a different depths the more the air will flow toward the shallowest diffuser. See snrub's good advice next post.
Last edited by Bill Cody; 04/09/22 08:26 PM.
