Introduction
Thank you for choosing the Casfuy Smart Sensor Wireless Stainless Steel Pet Water Fountain. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new pet water fountain. Please read these instructions carefully before use and retain them for future reference.
Product Overview
The Casfuy Smart Sensor Wireless Pet Water Fountain is designed to provide fresh, filtered water for your pets. Key features include:
- Large Capacity: 3.2 Liters (108 ounces) to ensure a continuous water supply for 7-14 days.
- Premium Material: Constructed from food-grade 304 stainless steel for superior hygiene, corrosion resistance, and durability.
- Wireless & Rechargeable: Equipped with a powerful 4000mAh battery, offering up to 60 days of wireless operation on a full charge.
- Smart Sensor Technology: Features multiple water dispensing modes to adapt to your pet's drinking habits and conserve energy.
- Multi-Layer Filtration System: Ensures consistently clean and fresh water.
- Ultra-Quiet Operation: Designed to operate at extremely low noise levels (approximately 25dB), minimizing disturbance.
- Intelligent Reminders: Provides alerts for low battery and filter replacement.
- Emergency Water Storage: Maintains 100ml of water in the bowl during power outages.

Image: The Casfuy pet water fountain showcasing its 3.2L capacity and food-grade 304 stainless steel construction, with two cats nearby.

Image: A cat next to the Casfuy water fountain, emphasizing the large 4000mAh battery and its 60-day operational life.

Image: The Casfuy water fountain operating quietly next to a sleeping cat, with a graphic illustrating its 25dB noise level compared to other sounds.

Image: A cat drinking from the Casfuy water fountain, highlighting its 100ml emergency water storage capacity.
Package Contents
Please check the package to ensure all components are present:
- 1 x Stainless Steel Water Tank
- 1 x Stainless Steel Top Cover
- 1 x User Manual
- 1 x Pump Holder
- 1 x Filter Sponge
- 1 x Activated Carbon Filter
- 1 x Water Pump
Setup Instructions
- Unpack Components: Carefully remove all items from the packaging.
- Clean Components: Wash the stainless steel water tank and top cover with mild soap and water. Rinse thoroughly.
- Assemble Filter: Place the filter sponge into the pump holder, then insert the activated carbon filter.
- Install Pump: Secure the water pump into the designated slot in the pump holder.
- Place Pump Assembly: Position the pump and filter assembly inside the stainless steel water tank.
- Fill with Water: Fill the stainless steel water tank with clean water up to the MAX line, ensuring the water level is above 30% at all times to prevent pump failure.
- Place Top Cover: Carefully place the stainless steel top cover onto the water tank, ensuring it is properly seated.
- Initial Charge: For optimal performance, fully charge the fountain before its first use.
- Position Fountain: Place the assembled fountain on a flat, stable surface in an area accessible to your pet.
Operating Modes
The Casfuy water fountain offers three flexible working modes:
- Continuous Flow Mode: Provides a constant stream of water 24/7 when the fountain is plugged into a power source. This mode ensures continuous hydration.
- Smart Sensor Mode: Water dispenses for 15 seconds only when your pet approaches the fountain. This mode conserves battery life and keeps water fresh.
- Timed Mode: If no pet is detected for 1 hour in Smart Sensor Mode, the fountain will automatically switch to Timed Mode, dispensing water for 15 seconds every hour. This ensures your pet has access to water even if they don't trigger the sensor.
To switch between modes, refer to the button on the top unit of the fountain. A visual indicator will confirm the selected mode.

Image: A cat near the Casfuy water fountain, detailing the three flexible working modes: Continuous Flow, Smart Sensor, and Timed.
Maintenance
Regular maintenance ensures the longevity and hygiene of your pet water fountain.
- Water Level: Always ensure the water level is above 30% of the tank capacity. Operating the pump dry will cause it to fail.
- Cleaning: The stainless steel components are dishwasher safe for easy cleaning. For manual cleaning, use mild soap and water, then rinse thoroughly. Clean the pump regularly to prevent mineral buildup.
- Filter Replacement: The fountain features a smart filter reminder. When the indicator light signals, replace the activated carbon filter and filter sponge. Press the button for 8 seconds to cancel the filter replacement reminder after changing the filter.
- Battery Charging: The fountain will provide a low battery alert. Recharge the unit using the provided USB-C cable when indicated.

Image: A detailed diagram illustrating the multi-layer filtration system of the Casfuy water fountain, showing the different filter components.

Image: The Casfuy water fountain displaying its intelligent reminders for filter replacement and low battery.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fountain not dispensing water. | Low water level; Pump clogged; Battery low; Incorrect mode. | Refill water above 30% mark; Clean pump and filter; Recharge battery; Check operating mode. |
| Water flow is weak. | Filter clogged; Pump dirty. | Replace filter; Clean pump thoroughly. |
| Fountain is noisy. | Low water level; Pump not properly seated; Debris in pump. | Refill water; Ensure pump is securely in place; Clean pump. |
| Filter reminder light stays on after replacement. | Reminder not reset. | Press and hold the button for 8 seconds to reset the reminder. |
Specifications
- Brand: Casfuy
- Model: W12
- Material: 304 Stainless Steel
- Color: Metal
- Capacity: 3.2 Liters (108 Ounces)
- Power Source: Rechargeable Battery
- Battery Capacity: 4000mAh
- Operating Noise Level: Approximately 25dB
- Item Weight: 1.87 pounds
- UPC: 769044610636
Safety Information
To ensure safe operation and prevent damage to the product:
- Always keep the water level above the minimum mark (30% capacity) to prevent the pump from running dry and failing.
- Use only clean, fresh water in the fountain.
- Keep the fountain away from direct sunlight and heat sources.
- Ensure the charging port is dry before connecting the charging cable.
- This product is intended for pet use only.
Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official Casfuy website. Please have your model number (W12) and purchase date ready when contacting support.