Swimming pool companies in Salt Lake City recommend backwashing the sand filter about every week, or more frequently if your pool gets a great deal of use. Ideally, you should do this pool maintenance task right after you vacuum your pool. Watch this quick video for a demonstration of the proper way to backwash a sand filter.
This pool maintenance expert directs viewers to turn off the sand filter, and then affix the backwash hose to the backwash nozzle. Screw on a hose clamp, and adjust the multiport valve from the filter setting to the backwash setting. It should run for about a minute. Then, you’ll adjust the setting to rinse, and finally turn the setting to filter. Once you’ve completed these steps, your lap pool is ready for use again.