Should I run my pool pump on a timer instead of nonstop?

Yes, run it intermittently. The goal is total water turnover per day, not constant running—most pools need 8–12 hours in summer, less in cooler months. Split that into two or three chunks, like 4 hours morning and evening, to save electricity while keeping water moving and chemicals mixed. Don’t skip entire days, though, because still water breeds algae and bacteria fast.