Check the listing for details. SpaGuard System Flush. Color: Limited Edition, Condition: New. Listed at 23.99 USD. SpaGuard System Flush is the ultimate solution for hot tub owners looking to improve their spa's performance. Over time, unseen build-up in spa plumbing can negatively impact performance, leading to poor water quality and reduced efficiency. With SpaGuard System Flush, you can easily remove built-up grime, lotions, body oils, skin and hair care products, and debris from your spa's plumbing system and surface. This allows your spa's chemistry and circulation system to operate efficiently, improving the condition of your spa water. Upgrade your spa care routine with SpaGuard System Flush and enjoy a revitalized spa experience. Product Benefits: Use prior to draining, cleaning, and refilling your spa Remove cartridge filter and clean with Spaguard Filter Cleaner Circulate water for 15 minutes Turn pump off and completely drain spa water Clean the surface of your spa with Bioguard Off The Wall surface cleaner Reinsert cleaned cartridge filter Refill the spa, balance the water, and resume use