I need some assistance in confirming my suspicions. We bought a home with a 1972 pool. The pool needs new coping, surface refinishing etc but we are not ready to do that work financially yet. In the mean time, I have replaced the motor with a 2 speed and installed a timer to cut back from the 24/7 high speed operation to low speed 12 hours a day (two 6 hr periods).
I noticed prior to the install when the skimmers got full the pump seemed to be starving, with the return jets pushing out very little water and bubbles. I thought the bottom drain would keep that from happening. Does this mean the bottom drain may be plugged?
Also, is it normal a pool of this age would have only a single suction line? (see the pic in the thread below). I figured there would at least be a bottom drain / skimmer line T above ground even if it didn't have a valve. But my pump station only has one suction line and one discharge.
I ask because we pay a cleaner now and as I move to doing this myself I wanted to get a kreepy Krauly or equivalent but without suction control I am not sure how it will work.
Please refer to this thread for pics of the pump station and pool information