Because I notice that simply turning the SG3 upside down will not effectively remove all contained water due to the design. It may be necessary to take it apart to fully emptied the SG3 of all the water content.
yes indeed Smart Garden 3 and 9 are somewhat different and unfortunately there is no good guide how to dismantle Smart Garden 9, I will let the team know and hopefully it will be created soon.
There is a setup guide and video available.