We recommend taking your Dolphin out of the pool after each use to empty and rinse the filters and to rinse off any excess chemicals (view filter cleaning video). It is ideal to keep your Dolphin out of the pool and stored away when not in use. If your Dolphin has a weekly scheduler, you can keep it in your pool for a week, but you will need to make sure the filter is cleaned and that your sanitizer levels are within range. Just as vinyl pool liners are susceptible to bleaching and degradation from chlorine, so is the Nautilus CC Series. Limit its exposure to chlorinated water and direct sunlight during storage.