The attached saddle valve draws water from the supply line automatically when the mini float valve is activated and water levels drop

rain collection

connectors and fittings

Two Robust Aire diffuser assemblies

047 W Cord Length:     33ft Max Head / Shut off:     42ft Discharge Size:     3" FPT Flow @ 10ft (GPH):     31

Kasco Robust-Aire RA2 Pond Aeration Kit with 2 Diffusers bacteria The attached saddle valve drawsRobust Aire RA2 Pond Aeration Kit with 2 Diffusers by Kasco This Kasco RA2 aeration system is a high quality aeration kit that has everything you need to aerate a pond from around 1 to 3 acres in size (depending on the depth). The NEW Robust Aire diffuser design uses an easy to assemble, self weighted, stainless steel base that lands upright every time. Custom edge guards are included to protect lined ponds. Common applications include: backyard ponds