A filter for a hot tub can be a very expensive product if it has to be changed more than a few times. What most people do not know is that filters can be cleaned and reused to save money on replacing the filter over and over again. Start off by removing the hot tub filter from beneath the skimmer of the hot tub. One thing to be sure about is that the power of the hot tub is shut off before beginning to remove the filter. Any large pieces of dirt, hair, or debris can be removed by hand or with a soft scrubbing brush. The seams of the filter should be brushed to get out as much of the hair or other particles as possible. Brushing too hard may cause some damage to the filter, so scrub gently to assure the filter will be reusable. The filter can then be pressure washed. If using a power washer