Water left in a washing tray, dirty water that remains in its tank, and a clean-water leak are different problems. Stop the mop-washing cycle and note where water is pooling, whether the wastewater tank is full, the robot and station models, and the exact app message. A tray may need routine owner cleaning, while a pump or internal drain fault requires the station’s service path.
If water transfers normally and an unusual sound is the only symptom, use robot and dock noise diagnosis. Sound alone does not establish a blocked drain or failed pump.
Start with the station’s removable parts
If there is standing water near a powered dock, stop and protect the plug, cable, and charging contacts. Do not touch wet electrical parts or keep running a wash cycle to see whether the water clears. Follow the exact manual for safely turning off or unplugging the station; if you cannot reach the plug without standing in water or touching a damaged part, keep clear and seek help.
For a dock with an owner-removable cleaning tray, remove and rinse it only as its manual describes. Clear hair, lint, or residue from the accessible tray and visible drain opening without pushing debris deeper or using tools on the pump. Check that the tray and wastewater tank are seated correctly and that the tank is not full. Do not pour water into the station housing or open its cover to reach a hidden hose or pump.
Match the alert to the exact station
ECOVACS, Dreame, and Tapo publish different station-specific checks. The ECOVACS Global FAQ first branches on whether its tray contains water: with a dry tray, it checks that the float and magnet are installed and can move freely; with water present, it checks accessible dirty-water tank seals and interfaces. It then describes a 50-second station self-cleaning test and a tray-cleaning/power-cycle retest. Use those controls only if the exact station manual identifies them.
Dreame’s wastewater sequence is for the X40 Master base and an unspecified station variant. It covers visible drain-pipe or sewage-filter blockage, a wastewater-tank sealing cover, the removable tray and filter, and wiping the overflow sensor with a dry cloth. It does not support opening or repairing a pump.
Tapo’s checks are for the RV50 Pro Omni only: seat and close the dirty-water tank, confirm its float hangs normally, check accessible rubber plugs, wash the removable tray and central filter, and clear debris from water-level contacts. TP-Link also directs owners to remove the tray and check the visible flexible dirty-water suction hose beneath it for debris, then confirm the hose points vertically downward. Before applying these steps, check the support page for the robot’s hardware version and current regional availability; TP-Link notes that feature access and product availability can vary. Clear only accessible debris as shown in the model-specific FAQ; do not pull or force the hose. Contact support about aged or damaged plugs or a damaged or obstructed hose. Keep liquid away from powered contacts. Do not transfer any of these float, filter, sensor, clearance, hose, or button steps to another station. If the tray remains full, a leak returns, or an alert persists after the exact model’s accessible checks, contact the manufacturer rather than opening the dock or attempting an internal pump repair.
Keep clean-water leaks separate
A leak from the robot’s removable water tank is not a tray drain fault. Use the robot water-leak guide for an accessible tank or cover leak, and the dry-mop guide if no water reaches the pad. Share the exact station model and a photo of the tray and alert with support; station names and part fit can differ by market.