Aquascape Dual Union 3″ Check Valve Assembly spillway Persistent foaming can indicate a

Persistent foaming can indicate a heavy concentration of undissolved organics

Nessler’s total ammonia tests will give false

Pond water flows up through filter pads and filter media with high surface area allowing suspended debris to be trapped and beneficial bacteria to provide natural biological filtration

Apply approximately 1 lb

Aquascape Dual Union 3″ Check Valve Assembly spillway Persistent foaming can indicate aITEM # 29098 The Dual Union 3 CVA Check Valve effectively prevents backflow in ponds and water features while providing a professional pump and plumbing connection inside filters and waterfall vaults. The heavy duty check valve flapper is built to last and maximizes water flow through the valve when open while preventing the backflow of water when the pump is shut off or during a power outage. Union connections on both sides of the valve make pump and