To prevent bacteria and viruses caused by standing water for a long time, NICREW water dispenser provides dynamic flow of living water for pets. Food grade material, BPA free, protect your pet's health. The fountains add oxygen to keep the water fresh, and the 3 waterfall shapes attract pets to drink, this which is good for their kidney health and prevents urinary tract diseases. The quadruple filter system to purify water and remove hair, dirt and food particles. It is recommended to change the filter every two to four weeks. The see-through design lets you easily check the water level, and the built-in blue LED light lets pets drinking easily in the dark won't be disturbed in their sleep. Fountain Cleaning: Wash the fountain once a week with a soft sponge and mild chemical-free detergent neither abrasives and sp drain it. Be sure to rinse thoroughly to avoid soap residue. Cleaning the filter: Replace the filter every three weeks or whenever there are signs of saturation in foreign bodies (dirt, food debris, hair, etc.) . . More frequent replacement may be required depending on housing environment or water quality, as well as when used by multiple animals. Do not wash the filters with soap. (Replacement filters are sold separately.) Cleaning the pump: Since tap water contains lime, the filter will calcify within a few months. It is therefore advantageous not only to remove dirt from the drive magnet several times a year, but also to clean it with vinegar. To do this, take a bowl and pour some vinegar into the bowl. Next, dilute the vinegar with tap water and soak a cloth in the vinegar water. The drive magnet and its surroundings are carefully wiped with the damp cloth. It is very important that all parts are rinsed very thoroughly with tap water after cleaning, as vinegar and other cleaning products are harmful to animals. Please clean the pump at least every 4 weeks. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received Delivery Quantity: (according to the main image)