For greater authenticity, this June a clutch will be installed too: normally the water is pumped back up to the top, but during performances, museum staff will be able to disengage the motor and let the public carry water themselves, to get a feel for how this small astronomical observatory really operated in Song times.
為了忠於原作，今年六月也將裝上離合器，平時仍是讓水回收，但展演時，就可以把馬達關掉，讓觀眾自己打水，體會宋朝的這座小型天文台當年是怎麼運轉的。