Visible dirt on the bottom of the pool must be removed every 24 hours or more frequently as needed to eliminate buildup. Visible scum or floating matter on the pool surface must be removed no less than every 24 hours by flushing or other effective means.
A vacuum-cleaning system capable of cleaning the entire pool must be provided, except that it is not required for spa pools with less than 75 square feet of water surface.
Minn. R. agency 144, ch. 4717, POOLS; LIFEGUARDS; AND EQUIPMENT, pt. 4717.1950
Statutory Authority: MS s 144.05; 144.12; 144.123; 145A.02; 157.01