The entire area under the stone flooring of the squares in the Inner town is cut by numerous water pipes made of clay pipes with or without plaster bed. Lead pipes were also found in some places narrower in diameter than the ceramic ones. They used to supply the buildings using the gravity principle following the terrain’s slope with clear water from the main water pipe. Masoned canals were found within the Inner town which used to collect waste and atmosphere waters in the central /big/ canal. The big canal is made and covered by big limestone plates. The canal is 0.5 m. wide and 0.8 m. high. It is made with a passage big enough to secure the drainage to south- east of a considerable quantity of water.