Yes. Most pet water fountains are easy to assemble and designed to be user-friendly. The process usually involves a few simple steps and can be done in minutes. 

Here's a basic outline of what to expect:

• Put filter cotton into the filter box
• Assemble the pump
• Fill the tank with water
• Put on the cover drinking tray and insert the faucet

Most pet water fountains come with an instruction manual that includes a step-by-step guide. Following this ensures that all parts are properly installed and the fountain functions correctly

Yes, a pet drinking fountain needs a filter.

 Filters help remove impurities, hair, food particles, and other debris from the water, keeping it clean and safe for your pet. Many filters also have activated charcoal to help reduce odor and improve the taste of the water, which can encourage your pet to drink more. 

It is recommended to purchase the set containing a filter. About four filters need to be replaced in a month. Be sure to regularly check and replace the filter as the manufacturer recommends.

Yes, many cat water fountains are designed to accommodate both cats and dogs. Choose a cat water fountain for your pet's size and breed. Larger dogs may require a pet drinking fountain with a higher water capacity.