Manual Cleaning of your Hot Tub Cartridges Spa filter cartridges should be rinsed at least every two weeks (more often when the bather load is heavy). Use a garden hose, and apply the water stream at a 45-degree angle, making sure to dislodge all foreign matter by spraying between each pleat.
At least every 3 to 4 months, and with EVERY water change, your cartridge should first be pre-rinsed with the garden hose, and then soaked overnight with Bear Strip Filter Cleaner (or according to package instructions). Then rinsed again and allowed to dry out.
If you have any more questions about filter cleaning please call us at 413-594-2666