10 Best Pond Filter System to Buy in (July 2019) Buyers
Jul 05, 20190183;32;Your pond pump and filter must run 24 hours a day. Consequently, at one time, a pump that filtered water once every two hours was acceptable. Since that time, however, pumps have become more energy efficient, reducing energy costs. Now, the new standard recommends a pump and filter that circulates water once every hour.