Hayward AUTO AIR RELIEF TUBE -C1750-

the Hayward Auto Air Relief Tube for the C1750 series is a specialized internal component designed to automatically evacuate trapped air from the Star-Clear Plus cartridge filter tank during normal operation. This narrow, flexible tube is typically constructed from a durable, chemical-resistant polymer and is positioned vertically alongside the filter element, reaching toward the highest point of the filter head. Its primary function is to provide a continuous escape path for air bubbles that can accumulate at the top of the pressurized vessel, preventing the formation of an air pocket that could reduce the effective filtration surface area or cause surging in the pool's return lines. By ensuring the filter remains fully primed with water, the tube helps maintain optimal hydraulic efficiency and prevents unnecessary strain on the pump system. The assembly often includes a small mesh filter or screen at the top to prevent debris from entering the relief line and clogging the manual air vent valve. For shipping and logistical purposes, the estimated weight of the Hayward C1750 Auto Air Relief Tube is approximately 0.18 pounds in its retail packaging, while the actual weight of the tube and its attachment hardware is roughly 0.06 pounds.