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.
A correctlysized pump, however, moves the water through the system and sends it back to the pool, filtered, cleaned and ready for swimming. A pool pump should run a minimum of 12 hours a day to turnover, or filter, all the water in a pool. A number of factors can reduce the amount of time required to filter the pool, one of which is the gallon size of your pool. How big your pool is determines how quickly your pump can complete a full turnover of all the water.