This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. This costs you nothing extra. See our affiliate disclosure for details.
Water fountains are not just for cats. A fountain keeps water moving and filtered, which many dogs find more appealing than a still bowl, and a big reservoir means fewer refills for thirsty breeds. The best dog water fountains hold enough water for your dog’s size, are sturdy enough not to tip, and are easy to take apart and clean.
We compared fountains on capacity, material, stability, noise, filter type and ease of cleaning, with a focus on dogs of different sizes.
Our Quick Picks
- Best OverallPetSafe Drinkwell PlatinumCheck Price on Amazon
- Best for Large DogsPetSafe Drinkwell Indoor/Outdoor Dog FountainCheck Price on Amazon
- Best for Multi-Pet HomesPetSafe Oasys Pet FountainCheck Price on Amazon
Short on time? These are our top choices. Full reviews and comparisons are below.
Dog Water Fountains Compared
| Fountain | Capacity | Material | Best for |
|---|---|---|---|
| PetSafe Drinkwell Platinum | 168 oz (5 L) | BPA-free plastic | Small to medium dogs |
| PetSafe Drinkwell Indoor/Outdoor | 450 oz | Plastic | Large dogs, multi-pet homes |
| PetSafe Oasys | 2 gallons (256 oz) | Plastic | Multi-pet homes |
| PetSafe Drinkwell 360 Stainless | 128 oz | Stainless steel | Small dogs and cats together |
| Pioneer Pet Raindrop | About 60 oz | Stainless steel | Small dogs |
1. PetSafe Drinkwell Platinum — Best Overall
A large 5-liter fountain with a free-falling stream and adjustable flow, suitable for dogs and cats. The big reservoir means fewer refills, and the carbon filter helps keep water fresh.
- Large 168 oz capacity
- Adjustable flow
- Dishwasher-safe parts
Worth knowing: Keep it topped up. Low water makes the pump noisier.
2. PetSafe Drinkwell Indoor/Outdoor Dog Fountain — Best for Large Dogs
A very large fountain designed for big dogs, with a huge water capacity and a wide drinking area. It can be used indoors or outdoors.
- Very large 450 oz capacity
- Wide drinking bowl
- Indoor and outdoor use
Worth knowing: It is big. Measure your space first.
3. PetSafe Oasys Pet Fountain — Best for Multi-Pet Homes
A 2-gallon fountain with adjustable flow and a wide tray, designed for homes with several pets.
- 2-gallon reservoir
- Whisker-friendly wide tray
- Carbon and foam filters
Worth knowing: Clean the pump regularly for quiet running.
4. PetSafe Drinkwell 360 Stainless Steel — Best Stainless Steel
A stainless steel fountain with multiple streams around a central tower, so pets can drink from different sides. Stainless steel is easy to clean and does not scratch like plastic.
- Stainless steel bowl
- Multiple drinking streams
- Good for dogs and cats together
Worth knowing: Capacity suits small and medium dogs better than large breeds.
5. Pioneer Pet Raindrop Stainless Steel Fountain — Best Compact
A compact stainless steel fountain with a gentle raindrop-style flow, ideal for small dogs and tight spaces.
- Stainless steel
- Compact footprint
- Quiet, gentle flow
Worth knowing: Too small for large, thirsty dogs.
How We Chose the Best Dog Water Fountains
- Capacity: enough water for your dog’s size between refills.
- Stability: wide bases that resist tipping.
- Material: stainless steel and BPA-free plastic options.
- Cleaning: parts that come apart easily, ideally dishwasher safe.
- Filters: replaceable filters that are easy to find.
How Much Water Does a Dog Need?
A common guideline is about one ounce of water per pound of body weight per day, so a 50-pound dog may drink around 50 ounces. Dogs drink more in hot weather, after exercise and on dry food. Choose a fountain that holds at least a day’s worth of water for all the pets using it. If your dog suddenly drinks much more or less than usual, talk to your vet.
Cleaning a Dog Water Fountain
- Unplug and empty the fountain.
- Take it apart, including the pump.
- Wash all parts with warm soapy water, or on the top rack of the dishwasher if allowed.
- Scrub the pump and tubes with a small brush.
- Replace the filter as recommended.
- Rinse well, reassemble and refill.
Clean weekly for most dogs, and more often for heavy droolers or multi-pet homes. Slobber and food bits build up faster in dog fountains than in cat fountains.
Our Verdict
The PetSafe Drinkwell Platinum is the best all-round fountain for small and medium dogs. Big dogs are better served by the Drinkwell Indoor/Outdoor, while the Oasys suits multi-pet homes. Choose the Drinkwell 360 Stainless or Pioneer Pet Raindrop if you prefer stainless steel.
Fountain Setup Tips for Dogs
- Place the fountain on a waterproof mat. Dogs splash more than cats.
- Keep it away from the food bowl so kibble does not end up in the water and clog the pump.
- Tuck the power cord behind furniture or use a cord protector, especially with puppies who chew.
- Introduce it gradually: start with the flow on low and keep the old bowl nearby for a few days.
- For outdoor use, choose a model rated for it and keep it in the shade.
When a Simple Bowl Is Better
Fountains are not right for every dog. Heavy chewers may attack the cord or parts, and some dogs are nervous of the sound. A large stainless steel bowl, refilled with fresh water twice a day and washed daily, is still a perfectly good way to keep a dog hydrated. For dogs who gulp water too fast, a slow-drinking bowl can help, and our guide to elevated dog bowls covers raised options for big dogs.
Related Guides
- 4 Best Dog Water Bottles for Walks, Hikes and Travel
- 4 Best Elevated Dog Bowls in 2026 (and Whether Your Dog Needs One)
- Catit Flower vs PetSafe Drinkwell 360: Which Cat Fountain Is Better?
- 4 Best Slow Feeder Dog Bowls in 2026 for Dogs That Eat Too Fast
Frequently Asked Questions
Do dogs need a water fountain?
Not necessarily, but some dogs drink more from fresh, moving water, and a fountain keeps water filtered and available.
Are water fountains good for large dogs?
Yes, if the fountain is big and stable enough. Choose a large-capacity model designed for dogs.
How often should I clean my dog’s water fountain?
About once a week, more often with multiple pets or heavy droolers.
Is stainless steel better than plastic?
Stainless steel does not scratch easily and is simple to clean. Good-quality BPA-free plastic is fine if cleaned regularly.
Can dogs and cats share a fountain?
Yes, many fountains suit both. Make sure the capacity is enough for all pets.