Solo Dive on the Tower 2 Algae Patch

Got down to the beach about 8:00 am.  No lifeguards in sight.  Geared up.  Added 2 more pounds to my weights and got in the water. Swam on the surface out past the swim buoys, then descended. Had 3141 psi in the tank as I went down, but the water was warmer than the air. Made over 7 minutes to 3000 psi and 20 psi/minute for the first 1,000 psi.  Move slowly to the East looking for shells. Got into deeper water and I got lighter. I couldn't maintain 20 psi/minute and drifted back up to 25 psi/minute. Turned the dive at about 1400 psi and got to the sand at 650 psi.  Hung around until I got to 130 minutes and 350 psi and then headed in. Dive time was 135 minutes;  consumption was 21.83 psi/minute at an average depth of 17 feet; SAC rate was 14.41 psi/minute and the RMV wa 0.37 ft3/minute.  Not bad for as long as I've been out of the water.