I give the ducks their food and water every other day .... sometimes it lasts 3 days.   

Easiest to do this during the day when the middle gate (that goes to horse arena and hallway) is open so you can use the water hose that is going to the big trough.

Turn on the water.  Grab both water buckets out of the duck stall and then dump them just inside the horse arena midway between the gate and the back porch .... so not near anything since it is gross and usually stinks.   Go over to hose and pour water into buckets.   Swirl and then go dump back over near fenceline.   Sometimes I have to rinse and dump twice.   Then fill and take to duck stall and put in the same position.   Make sure handle falls to the full round side so duck cannot get it's head caught in it.

Their food container is in the tool/horse shower room and is in between the goat and sheep containers.   I fill up the teal container and then go into their stall and pour 1/2 into one duck feed bowl and 1/2 into the other duck feed bowl.