Air-Loc manhole testers provide the most efficient, accurate, and cost effective method of testing new, existing, and rehabilitated manholes to identify infiltration or exfiltration problems. The Air-Loc manhole testing system allows you to test manholes quickly, provide immediate leak detection, before or after ring installation and backfilling, and eliminates expensive/time-consuming water tests. The head assemblies are made of lightweight aluminum, making them the lightest units available.
Vacuum testing is performed by creating a vacuum in the manhole and monitoring a gauge for vacuum loss. If a loss does occur, there is a simple way to locate the leak. Simply pour soapy water on the inside walls of the manhole, draw another vacuum and look for the bubbles. You have identified the location of your leak.
Tester features a bladder-style head assembly. It seals the inside diameter of the manhole and is supported by a durable aluminum brace. An aluminum push-pin rod connection allows for easy depth adjustment.
Air-Loc manhole testers conform with ASTM Specification C1244 for Concrete Sewer Manholes by the Negative Air Pressure (Vacuum) and ASTM C1227 for Precast Concrete Septic Tanks.