Adjustable Flow Control for Pond Skimmers The Atlantic Water Gardens Gate Keeper is an adjustable gate valve system that mounts on the 6-inch weir door of compatible pond skimmers, allowing precise control of water inflow through the weir without draining or disassembling the skimmer. By partially closing the Gate Keeper, pond owners can reduce skimmer draw during periods of high wind or low pond levels — preventing the pump from drawing air through the weir and losing prime. Maintain Prime in Variable Conditions Pond skimmers with fixed weir doors can lose pump prime during windy conditions when wave action repeatedly exposes the weir to air, or during autumn leaf fall when debris loading causes temporary water level drops at the skimmer. The Gate Keeper solves this by letting you throttle the weir opening without plumbing changes. Reduce the opening in windy weather; open fully during calm conditions for maximum surface debris collection. The 6-inch format fits all 6-inch weir door skimmers in the Atlantic and compatible range, including Pro Series skimmer models. Compatible Skimmers All 6-inch weir door pond skimmers (Atlantic and compatible) Function Adjustable gate valve for weir flow control Material UV-resistant polymer and stainless hardware Adjustment Smooth sliding or rotating gate — tool-free operation Prevents Air entrainment from wave action or low water level How to Install Mount the Gate Keeper on the existing 6-inch weir door of the skimmer using the provided hardware. Adjust the gate position to the fully open setting for normal operation. During periods of wind, wave action, or low pond levels, close the gate partially until pump prime is stable. Check that the gate operates smoothly without sticking, and rinse it clean of algae and mineral deposits each spring at pond startup. Ideal for Canadian pond owners managing skimmer performance through windy seasons and variable water levels.
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