With summer coming on the bather load in your hot tub will change to lotion slathered greased up bodies. The addition of sun screens and other oils into your hot tub means filters clogging up, oils film on the surface and ring around the hot tub.
This simple trick can help make your summer water care much easier.
Get a spa ball or scum ball from your local retailer, they are made of special fabric that absorbs oil but not water. They float around the surface and collect excess oils drastically reducing the effect on your water quality of all these contaminates.