This weekend we bought a 40 rubbermaid tub at Tractor Supply. Then we went to the hardware store and bought the fixtures to attach a water hose to it so I can drain it. The hardware wasn't more than $8. Tell them what you want to do & they can show you what to buy. Get a shut off valve too. We made our output valve 1inch since duck water can be chunky. Then we used a reducer to fit the 3/4 inch hose. All I have to do is attach a hose to my tub and open the shut off valve and the water will go where I want it to. I'm sure this can be done with the kiddy pool.
Hope this helps!
Hope this helps!