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Electro-osmosis hocus-pocus

We recently came across a relic of the damp-proofing industry – evidence of electro-osmosis damp-proofing. This “black-magic” was used in the past and must have had some benefit, however, one weak point was that any break in the wire rendered the full system ineffective.  The paragraph below explains the thought process behind it:-

Electro osmosis damp proofing is a method of stopping rising damp. It is one of the oldest forms of damp proofing and was developed way back in the early 1800s by a physicist called Ferdinand Reuss. The capillary action caused by the natural electrical potential between the earth and the wall that causes moisture to rise from the ground (rising damp) is interrupted and reversed when a small current is passed through it. When this interruption occurs, the moisture that would have eventually found its way into and up the wall simply seeps back into the ground resulting in no damp issue. There are two different types of electro osmosis damp proofing system; active and passive. Passive osmosis damp systems are more traditional. They do not require any power supply or electrical charge to work. Instead, they rely on the natural electrical potential between the earth and the wall to interrupt and reverse capillary action. Active osmosis damp systems are more modern. They require a small and constant electrical charge to work. Small 10 – 15mm holes are drilled at regular intervals around the internal walls of a property and platinum or titanium wire, or sometimes titanium rods (anodes as they are known) are inserted into these holes.

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