Most standard filters can be removed and sprayed with a garden hose. Spray into the filter pleats and remove any trapped dirt and particles. Many standard filters can also be soaked in spa filter cleaner. The process is simple: place the filter inside a bucket or specially designed filter-cleaning bag with spa filter cleaning solution and allow the dirt and particles to float into the water. After soaking, the filter should be sprayed thoroughly again to remove any remaining dirt and cleaner.
You may want to buy an additional filter to keep on hand. In this way, you can allow your filter to soak, put the replacement filter in, and use your hot tub right away. Inserting a dry filter each time may have the added benefit of keeping your spa's lines clean.
Clean you hot tub's filter once per month with a hose and, if needed, filter cleaning solution.
Hot Tub Cleaning - Acrylic Shells: It's a good rule of thumb to drain and clean your hot tub or spa about once every three months. If you have an acrylic hot tub shell, it's simple to clean, and you can be assured that the non-porous surface won't allow dirt, soapy film, or germs to penetrate. Simply use a mild bathroom cleaner, and wipe the acrylic with a damp sponge or cloth. However, don't use an abrasive cleaner or applicator, or a product that contains bleach.
If you want to clean the acrylic above the water line while the water is still in the hot tub, be sure to use a natural enzyme product that is recommended by the hot tub manufacturer. Be careful of household soaps and cleaners because they may change the water chemistry.
Drain and clean your hot tub once every three months. Be sure you are using the right kind of cleaner.
Hot Tub Cleaning - Vinyl Covers: Because your hot tub cover is exposed to the elements, it's a good idea to use a vinyl protector to extend its life and look. You can buy vinyl cleaner and protector from your hot tub dealer. Clean your cover and apply protector each time you clean your spa's filter. Remember to use the cleaner only on the top of the cover; you won't want the cleaner to interfere with your water chemistry. To clean the under side, spray with a garden hose and air-dry the cover.
Clean your hot tub cover whenever you clean your filter (about monthly).