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.    Another user said:   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.ast, divide the gallons, G, by the flow rate, F, to get the number of minutes you need to run the filter to turn (filter) all of the water once. For example, if I have a 5000 gal pool and a pump rated at 25 gallons per minute, it will take 200 minutes (or about 3 hrs and 20 min) to filter all of the water once.