If it happens again that you can't lift a water bucket, get an electric drill (if you don't have one) and a drill water pump attachment and you won't need to, you can just pump the water into the tank that way. Something like this:
https://www.amazon.com/WaterAce-WA62UP-Submersible-Utility-Black/dp/B07FCFWGMP
WaterAce WA62UP Drill Pump, Black https://www.amazon.com/dp/B07FCFWGMP/ref=cm_sw_r_cp_api_glt_fabc_3RN98J6ME0VG2PHBRFCP
I use this pump. Its relatively cheap and can perform 2 tasks. If you shove the output hose into the condensate line it can help push through a blockage while draining the pan