Inverted Siphon
photoView of a portion of a closed "inverted" siphon. The pieces of limestone have been hollowed out and have a collar and sleeve arrangement. They would have fit together with a pasted of lime and olive mash to seal them.
View of a portion of a closed "inverted" siphon. The pieces of limestone have been hollowed out and have a collar and sleeve arrangement. They would have fit together with a pasted of lime and olive mash to seal them.