The longevity of a backyard pond depends primarily on the quality of the liner used. The best liners typically come with a 20-year warranty and can last anywhere from 30 to 40 years, ensuring a considerable lifespan for your pond.

The maintenance of a backyard pond involves some ongoing costs. Running a pump for a typical 176-square-foot pond requires approximately $260 in electricity expenses per year. Filters need regular cleaning to maintain optimal performance. If you prefer to have professional assistance, hiring a pond-maintenance firm typically starts at around $150 per year. Regular maintenance is essential to keep your pond in good condition and ensure its longevity.

Ideally, ponds should receive sunlight in the morning and shade in the afternoon. This balanced exposure helps keep the water cooler, which discourages the growth of algae blooms and promotes a healthier pond environment.

While a tree's afternoon shade can be beneficial, placing a pond directly under a tree's branches will lead to frequent clogging from leaves, seeds, or needles unless constant maintenance is provided. If there is a young tree nearby, it's crucial to consider its mature spread before finalizing the pond's location to avoid future issues.

It is recommended to have the pond within sight from your house to ensure regular attention and maintenance. Additionally, if the pond is placed more than 20 feet away from your patio, you may not be able to hear the soothing sounds of water features such as waterfalls or fountains.