My schedule is as follows.
Large pool. 10.5 * 6m and 2.2m deep. Have a solar heating and 1.25 kWh pump. Previously had a solid PVC cover but for last 7 months a leaf catcher net.
All I ever put in my pool for the four years I owned it is HTH chlorine .
In Summer, pump runs daily for 6 hours during the times just when sun is at its peak (SEP - FEB)
In Winter, pump runs 3 hours every alternate day.
Backwash only when my pool over flows due to rain, otherwise cover keeps the crud out so rare for me to clean Weir and pump baskets.
Never had a green pool and also only put chlorine in every two weeks.