Pierre Bouwer, 54, a businessman from Vanderbijlpark and a committee member of the Vanderbijlpark NTU, started fixing potholes on the Stokkiesdraai Road, just outside the town, along with some of his workers on Wednesday.
"I'm fixing the potholes myself, because my family and I drive to and from our smallholding on this road at least seven times a day, and each time our lives are in danger."
Mari Myburgh, chairperson of the local NTU, said she was threatened with arrest if they fix the potholes by themselves.
"Supposedly we don't have the expertise to do it alone, but Pierre has done his homework. He learned from the supplier of the material that one of the most important steps is to compact the base filler and tar," said Myburgh.
Bouwer said: "I'm not just filling the hole with soil to hide the problem.
"Rain water won't be flushing out these potholes so easily any more. I'll be giving lessons on Sunday afternoons," he joked.