Your Eco7 compressor is not designed to operate at 8ft deep so it desperately struggles to produce air bubbles at that depth. Ted Lea proved and showed this on the forum back when the Eco7 compressor was frequently discussed about 8 years ago. This is why the bubbles are noticeably fewer at 8ft compared to more air being pushed to 4 ft; the path of less resistance. Also as the diaphragm ages and becomes worn/weakens it will produce less and less psi.
Last edited by Bill Cody; 10/22/19 07:39 PM.
