If your swimming pool is equipped with a diatomaceous earth swimming pool filters, you can rest assured that your pool is getting the best filtration system possible. However, a filter is only as efficient as the maintenance schedule used to keep it clean. This means that if you want that DE filter to continue to work at peak efficiency, you need to backwash it regularly to keep your water clean and avoid overtaxing your filtration system. This equipment can be expensive to repair or replace, so regular maintenance is very important to avoid potential problems.