smile.
I think we may be on to a possible explanation. I’ve never heard of Quanats or Qanats.
But we have some sub irrigated pasture that operates like this. I’m asking myself if I could improve what we have with a few shafts.
There is a spring fed tank that we dug with a dozer 40 years ago, it has never been dry (no water ever runs into it, it seeps from the bottom, which is a shale deposit above a red hardpan.
They could have been used as fresh water sources.
Water from the ocean breezes condenses on the smooth surfaces every night and runs down into a collection area............