Optima UCR-1 adjustment
There is an adjustable white basket at the bottom of the inner workings. There is a reference mark on the basket, and on the white body just above the basket are corresponding stops. These stops are marked as bars with 1, 1.5, 2, 3, 4, and 6 bars. Do these control speed or gallons per minute? I have some new heads installed along with some old ones. All of the old ones sweep pretty slowly. Some ot the new ones sweep more normally, toward the slow speed, and some are super fast, swinging a 90 degree arc in just a couple of seconds.
