Introduction
Thank you for choosing the Kastty 15L/4 Gal Stainless Steel Pet Water Fountain, Model FS79. This automatic water dispenser is designed to provide a continuous supply of fresh, filtered water for your pets, promoting their hydration and overall health. Its large capacity, durable stainless steel construction, and quiet operation make it an ideal choice for households with multiple pets or large dogs.
This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your pet water fountain.

Image: The Kastty 15L/4 Gal Stainless Steel Pet Water Fountain, showcasing its design and capacity.
Setup Instructions
Follow these steps to assemble and set up your Kastty Pet Water Fountain:
- Unpack Components: Carefully remove all components from the packaging. Ensure you have the basin, water tray, pump, power adapter, straight connector, filter holder, filter, and pre-filter sponge.
- Attach Straight Connector: Attach the straight connector to the water tray.
- Connect Pump: Attach the pump to the straight connector.
- Insert Filter: Insert the filter into the filter holder with its flat side facing down.
- Place Pre-filter Sponge: Place the pre-filter sponge on top of the filter.
- Attach Filter Holder: Attach the filter holder to the cradle located below the water tray. Ensure it is securely hooked.
- Add Water: Fill the stainless steel basin with water. Do not exceed the maximum fill line.
- Route Pump Cable: Run the pump cable through the cable slot and out of the basin.
- Cover Basin: Carefully place the water tray assembly onto the basin, ensuring the cable is properly routed and the tray sits flush.
- Power On: Plug the power adapter into a wall outlet. The fountain will begin operating.

Image: All components included in the Kastty Pet Water Fountain package.

Image: Visual guide for assembling the internal filter and pump components.

Image: Steps for filling the fountain with water and connecting power.
Setup Video
Video: An official KasttyPets video demonstrating the assembly and setup of the water fountain.
Operating Instructions
The Kastty Pet Water Fountain is designed for continuous, quiet operation. Once plugged in, the pump will circulate water through the 5-layer filtration system and dispense it into the drinking area.
- Water Flow: Water flows from the central dispenser, creating a gentle stream that encourages pets to drink.
- Water Level Indicator: The fountain features a visual window with an LED light to monitor the water level. A blue light indicates a normal water level, while a red light signals that water needs to be added.
- Quiet Operation: The ultra-quiet water pump operates at approximately 25dB, ensuring minimal disturbance to your household and pets.
- Unique Water Outlet: The design accommodates different pet drinking preferences, with a side outlet for cats and a deeper groove for dogs.

Image: The LED water level indicator, showing blue for normal and red for low water levels.

Image: The unique water outlet design catering to both dogs and cats.
Maintenance
Regular cleaning and filter replacement are crucial for maintaining water quality and the longevity of your fountain.
Cleaning the Fountain
- Frequency: Clean the entire fountain, including the basin, water tray, and pump, every 1-2 weeks.
- Disassembly: Unplug the fountain. Disassemble the water tray and remove the pump and filter assembly.
- Cleaning Components: Wash all stainless steel and plastic components with mild soap and water. Rinse thoroughly to remove any soap residue.
- Pump Cleaning: Refer to the 'How to Disassemble the Pump' section below for detailed pump cleaning instructions.
- Reassembly: Reassemble all components once clean and dry.

Image: Steps for disassembling and cleaning the water pump.
Filter Replacement
- Frequency: Replace the filter and pre-filter sponge every 1-2 weeks, or more frequently if you have multiple pets or notice reduced water flow.
- Procedure: Remove the old filter and sponge from the filter holder. Insert a new filter (L05: B0DXPCYBXQ) and place a new pre-filter sponge on top.

Image: Illustration of the 5-layer filtration system components.
Troubleshooting Guide
| Problem | Possible Cause | Solution |
|---|---|---|
| Fountain not dispensing water. |
|
|
| Fountain is noisy. |
|
|
| Water flow is weak. |
|
|
| Red LED indicator is on. | Water level is low. | Add water to the basin immediately. |
Specifications
- Model Number: JSFS79A
- Capacity: 15 Liters (approximately 4 Gallons)
- Material: Food-grade 304 Stainless Steel
- Dimensions (L x W x H): 15.87 x 13.15 x 7.4 inches
- Item Weight: 4.6 Pounds
- Filtration System: 5-Layer (Pre-sponge, Non-woven fabric, Ion exchange resin, Activated carbon, Sponge)
- Noise Level: Approximately 25dB
- Features: Water Level LED Light, Visual Window
- Intended Use: Indoor
Warranty Information
Specific warranty details for the Kastty 15L/4 Gal Stainless Steel Pet Water Fountain (Model FS79) are typically included with your product packaging or can be found on the official Kastty website. Please refer to these resources for information regarding warranty coverage, terms, and conditions.
Customer Support
For further assistance, questions, or to purchase replacement parts (filters L05: B0DXPCYBXQ, pump P05: B0F6CWN4B1), please contact Kastty customer support through their official website or the retailer where you purchased the product.
You can also visit the Kastty Store on Amazon for more information and product accessories.