With cistern at 17/ΟΕ-ΟΣΤ (P 10:2), two chambers connected by a passage.
18/Π went out of use first and was closed off from 17/ΟΕ-ΟΣΤ; filled up at one time with material dating between 350 and 300 B.C ... 325-285 B.C.
Two chambers connected by a tunnel, all filled at the same time, but with slight Hellenistic disturbance. Chamber A, to west at 14/ΛΗ, B to east at 14-15/ΛΒ on grid for section RR.
Cistern system ca. 20.00m ... Ca. 325-275 B.C.