Join Date: Mar 2019
Location: Madison, Alabama
I would elevate the pool by elevating a sheet of plywood with a few brace boards under it, either with 4x4's or cinderblocks, and resting the pool on the plywood. You can cut a small hole in the plywood for the drain with no worry of weakening it.
Then you just need a way to start or stop the water flow through the drain hose without having to bend down too far. I guess some sort of valve or union would work.
Now the fun part, how to make the pool easy to refill. Here's my suggestion--> if you have the room, set up a BIG Rubbermaid type trashcan or bin next to the pool, and elevate IT above the pool as much as is practical. Set up a drain valve in it with a bulkhead fitting, or just get a submersible pump and a hose for the job. just turn a valve and you can fill the pool with ease.
Why? If you did this, you could fill up the big barrel whenever it is convenient for you, with a garden hose or something. Then you could let it warm up in your heated garage, and you could dechlorinate it, and you could let it breathe and aerate before you needed to change water.
Making large water changes is risky, so if you did this, you could eliminate most of that risk while having your setup always ready to make a big water change whenever you needed to, either for a routine change or for an emergency.