Water Well Drilling in Thailand

https://www.youtube.com/watch?v=aGRlQ-P5-YA

Water Well Drilling in Thailand. We're drilled a water well at the Chaiyaphum district in Isaan, in Northeast Thailand. The driller stopped at 30 m, and they said there is too much clay soil, and would be too difficult to find water. But I would like to try again and going deeper.