I installed it in my house. In one room to test. 3 weeks after installation I resealed the wall after the paint was stripped. Primed and water proofed all the walls in the room. The vents are still perfect but the other rooms that had damp are already showing damp signs again. I can surely say that this product works for my house. I am planning to install throughout the entire house. A friend and myself fitted them ourselves.

Die damp sal die roete van minste weerstand volg. So enige leë gat in die muur sal die omliggende area droog "suig". Ek het so van die proppies ingesit en hulle werk. As jy wil kan jy maar net die gat boor ook. So groot as moontlik, met 'n coredril. Ek het 90mm gate op een slegte plek geboor. Baie cheaper en werk soos 'n bom. Die proppies lyk net netjieser natuurlik.

This is an excellent product I’ve used them on a couple of sites where rising damp and Mould was a big problem. Most older houses weep holes have been clogged up not allowing sufficient air flow. Damp Vent Valves allow for much needed flow.

I installed more than 30 plugs in a house at Tergniet. This product is a great investment in your house. You can also use it as a drainage system by installing a 40mm pvc pipe and using the damp-vent plug as a end prop. Great product.

I used your product a year ago and tested it on various areas to convince myself it is working. As you will know being in the waterproofing and damp proofing industry for the last 18 years , you tend to get skeptical of all the new product or cures on the market. My testing included exact same amount of moisture in the wall about 1m apart and left the one just scraped natural drying and one area with the damp plug. The moisture readings were already different from week 1. After 4 weeks the damp vent area lost about 50% moisture more in correlation to the scraped part. This product really works.