IQUE Smart Pool works perfectly in your hot tub or spa. If you have struggled with cloudy or green hot tub water, you know the secret to maintaining your spa or hot tub is cleaner water and this all comes down to testing the water and keeping track of changes. This is exactly what IQUE Smart Pool does for you! No more hassle. Of course, you still need to make sure you do the basics of maintaining your spa, like cleaning the spa filter, clean, drain, and refill every 3-4 months. Ensure that you add enough water to keep your spa full and air out the spa cover at least once per week. Testing, tracking, and micro-dosing really is key to enjoying a clean, healthy spa.