Welcome to The Pond Liners! We’re pond enthusiasts who spend our time researching, testing, and comparing the equipment that keeps ponds healthy and beautiful — from flexible and preformed liners to filters, pumps, UV clarifiers, and water treatments.Choosing pond equipment can feel overwhelming. Specifications are confusing, product claims are bold, and a mistake can cost both money and the health of your fish and plants. That’s why we dig into the details: build quality, sizing, running costs, ease of maintenance, and real-world performance. Our guides break down what matters so you can buy with confidence.The Pond Liners is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. This support keeps our reviews independent and helps cover our testing costs. We only recommend products we’d happily use in our own ponds, and commissions never influence our ratings.Whether you’re digging your first backyard pond or upgrading a mature koi pond, we’re glad you’re here. Browse our guides, compare our top picks, and build the pond you’ve always wanted.