/> Simple pet fountains use gravity to naturally maintain the water level in a bowl. They use a combination of pressure and small exit holes to make sure that not too much water can come out and overflow. These pet fountains have tall tanks for the system to be effective.
On the other hand, an electric pet fountain uses pumps to draw the water from a relatively short but wide reservoir. Sensors measure the water level, and then the necessary amount of water will fill the bowl.
A major selling point of pet fountains is the fact they all come with filters to ensure that the impurities don’t get mixed with water. Even the gravity fountain has a replaceable filter. Electric ones have more than one layer of filter to thoroughly clean the water. A charcoal filter is also introduced to make sure that water will