https://qanat-firaun.de/en
The Qanat Fir'aun, or Pharaohs Watercourse, a 150km long aqueduct to supply the Dekapolis. Revised by Jens Kleb, the results of the DFG-funded project
qanatfiraundecapolisaqueduct
https://alamutism.ir/qanat-in-iran-first-part/
There are significant advantages to a Qanat water delivery system ,for example The system is run absolutely by gravity force
in iranfirst partlonely planetqanatsystem