This is an outstanding product.
This is an outstanding product. I have used it for 18 months enjoying odour free crystal clear water with a consistent ph level. It is important to follow the manufacturers recommendations and as they predicted the water turned cloudy on the first application but since then not a hint of cloudiness. Generally, I clean the filter every two weeks or after heavy use every week; I don't use cartridge cleaner every time but again as mentioned in the instructions the filter catches all the debris so regular frequent cleaning gives the best results. On the odd occasion where I have let it run to three weeks it has really been ready for a clean but the general condition of the spa hasn't been affected. Spa Magic is for all intents and purposes odour free and the spa is chlorine free. Ideal.