The IcyByte Pet Water Fountain holds 60 ounces of water, which is enough for a small dog or cat for several days. The pump circulates water through a charcoal filter to remove impurities and keep the water fresh. This matters because stagnant water can develop a film or odor within hours.

The fountain uses a three-stage filtration system. A sponge catches hair and debris, the charcoal layer absorbs odors, and an ion-exchange resin softens the water. The flow rate is adjustable via a dial on the pump, so you can dial it down for skittish cats or up for dogs that drink heavily. The water stream is quiet enough to sit in a bedroom without disturbing sleep.

The reservoir is opaque, which slows algae growth compared to clear plastic fountains. The pump is rated for 3000 hours of continuous use. One limitation: the 60oz capacity means you will refill it daily for a larger dog or multi-pet household. For a single cat or small dog, it works well without constant attention.