The better option between a sand and cartridge pool filter depends on your specific needs. Sand filters are cost-effective and can filter out larger particles, but they require regular backwashing to remove trapped debris. On the other hand, cartridge filters offer better filtration for smaller particles and require less maintenance, as you only need to clean or replace the cartridge periodically.
If you have a large pool and don't mind the occasional backwashing, a sand filter may be suitable for you. However, if you prefer a more efficient filtration system that requires less maintenance, a cartridge filter is a better choice. Consider factors such as pool size, budget, and personal preferences when deciding which filter is best for you.