We recommend you clean out your spa regularly (e.g. every 3 months). If you want to enjoy your hot tub to the maximum regular cleaning helps keep your hot tub hygienic and fresh.
Shocking your hot tub once a week kills bacteria that can build up from dead skin, oils and cosmetics. It keeps your water clear and helps keep your hot tub cleaner for longer.
For more information about chemical options for your water visit: http://www.canadianspacompany.co.uk/
Rinsing off before you get into the hot tub can prevent lotions, cosmetics and sweat from entering the water. These are leading causes of dirt and build-up in your hot tub. Be sure to use the shower before you get into the hot tub, and ask your guests to do the same. By keeping yourself clean will help keep your hot tub clean.