| In
the Hydrant Mini Line Stop System the flow of
water in the Main is not affected. A simple
Golf Blade Saddle is fitted to the 'leg' between
the Hydrant and the Main, through which a small
hole is drilled under pressure. A Hydra™
stopping bag is inserted and inflated. Inflation
is controlled by a pressurisation unit using
the line pressure through the Sniffer Hydra™
Bag Service Spine in the entry hole. When inflated
the defective Hydrant can be replaced and Hydra™
Bag removed. |