Print the case_bottom_wasserstand_status with a transparent filament and glue it in. This shows the current water level in the tank. I added 2 new files the case_bottom_wasserstand and case_bottom_wasserstand_status. I clean the drinking fountain once a week, to clean the inside of the tap, I use pipe cleaning sticks or a cleaning brush Since the screws are under water, they should be rust-free There is also a Hose press valve to regulate the flow rate, as the pump has too much pressure and the tap should run very slowly. Since our cats Murphy and Jerry are faucet drinkers, I designed a drinking fountain for them.