For example, a minimum wage of $10 per hour will have no effect for workers whose marginal productivity in a given line of work is greater than $10 per hour. The legal supply and demand remains unchanged for such labor.
One way to keep control of the time you run the swimming pool pump is to run it several times a day for short periods of time. If you want to activate the pump once a day, start with six hours, but never go lower than five hours, especially in the summer. If your pool is in constant use, you may need to run the pump for up to eight hours per day, frequently checking the water clarity and chemical balance.
1 to 2 hours. If by the pool filter, you mean how long to run the pool pump to circulate water, I have been advised by pool pros to run it according to the hours of daylight at the time. e.g., in the summer run it 12 to 14 hours and in the winter, 8 hours. Well, I myself would run it for at least four hours a day.