this is a full-fledged like a wind tunnel basically water is circulated full crosssectional area around in a in in a huge uh huge uh Circle and there is basically a three three times 3 m wide 1 and A2 M deep uh 5 meter five six meter long crosssection area of water just passing through over or past you like you were in in in an endless ocean swimming in an ocean water is water quality is perfect there's no turbulence no n just pure water running past