Perforated PVC Vent Pipe

Cathodic protection deep well anode systems operate at a relatively high output, providing protection over a broad area. Large amounts of chlorine gas are generated
from the dissolution of naturally occurring salts in the soil. If this system is not not vented properly, chlorine gas build up can erode the insulation on the header cable resulting in a premature system failure.
To tackle this problem, ventilation pipes are widely used to displace chlorine gas generated by the discharge of DC current from the impressed current anodes. The vent pipe is commonly centered in the active area allowing chlorine gas to escape into atmosphere.
Vent Pipes are made from high quality polyvinyl chloride (PVC) resin. The pipes can be perforated with relatively large diameter holes and covered by a layer of geotextile fabric which greatly enhances the venting capability of the pipe.