The Roman plumbing and drainage system is still largely in place
and shows the ingenuity of the Roman engineers.
Lead pipes were used to carry hot spa water around the site
using gravity flow.
The Spring overflow is where surplus water from the Spring, not
used in the baths, flows out to a Roman drain.
The Roman great drain carries all the spa water from the site to
the River Avon four hundred metres away.
View of the mineral-stained spring overflow