How often should my spa filter run?

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To make sure that your hot tub filtration system can properly clean the water, we recommend that you let it run for at least 12 hours per day. If you're looking to lower your energy costs, you can program the filter cycles to run during off-peak hours whenever possible.
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Spa filters should be run based on your use and hot tub type. Three Hours Twice a Day Is Recommended Most spa filter cycles are pre-set to run twice each day for four hours each time, but allowing the spa to cycle less often can save energy. Washington State University's energy program recommends running the filter twice a day for three hours.
For portable spas it is recommended that the filtration cycle run between 4 - 8 hours per day, depending on your usage and swim spas should run between 12 - 16 hours per day, depending on usage. NOTE: If you use your spa on a regular basis you will need to run your spa filtration for a longer period of time per day. (portable spa 6 or 8 hours)
Hot tub filters should be replaced every 12 months in order to easily keep the water fresh and clean. Failing to replace a hot tub’s filter will result in unsanitary water and could potentially damage the hot tub itself. Changing the filters of a hot tub every 12 months should be often enough to keep them up to par.
Running the Spa Pump: In a swimming pool, the water should be turned over 1-2 times daily. This means that all of the pool water should be run through the filter, once or twice daily. For most spa owners, it would be recommended to double the turnover rate, filtering all of the water 3-4 times per day.
Also to know is, how long should I run my hot tub filter? Most spa filter cycles are pre-set to run twice each day for four hours each time, but allowing the spa to cycle less often can save energy. Washington State University's energy program recommends running the filter. twice a day for three hours.
The manual for my "new" spa states the same thing...but I was able to set it to run 1hr every 12hrs (below the manufacturer's recommendation of 2hrs every 12hrs). It has been a year and so far...no issues of concerns.
Your filter should be rinsed regularly, about twice a week, based on your hot tub usage and climate. Generally speaking, the rule of thumb is to thoroughly clean your filter once every two weeks with a filter cleaner that will allow you to clean between the pleats and remove any deposits.
Run your filter 1 hour for every 10 °F (−12 °C) it is outside. A general rule of thumb you can follow year-round is running your filter dependent on the temperature. In the winter, you’ll be running it 6 or fewer hours, while in the summer, you might have to go a full 12.
A dip in the spa can be a spontaneous event whenever the mood strikes. Since your hot tub pump circulates the warm water as well as the sanitizer, a general rule is to follow manufacturer recommendations or leave the pump on for a minimum of eight hours per day.
You will need to go through this process around every three months so that the water can stay safe for use and the tub can be hygienic and fresh.