It's one of life's few absolutes along with death, taxes, and a new Pirates of the Caribbean movie eventually coming out. Proper pond maintenance is important and keeping that water moving is a big part of that. Before we talk about filters (because let's be honest, you know we're going to get there) there are a lot of things that can help your pond. We recently had a friend discover a leak in his new pond and had to remove his liner to drain it. Under his liner, the previous owner had a carpet underlayment that had rotted through and was soaked. So,...