Ed Beaulieu discusses the features and benefits of Aquascape’s wetland filtration system. Wetland filters play an important role in pond ecology and help improve water quality and appearance. Using a Snorkel Vault and Centipede module, you can build an effective and efficient wetland filter for any type of water feature. http://www.aquascapeinc.com
Source http://handbookblogger.blogspot.com/2017/09/wetland-filtration.html
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