You did it! You really did it! That is awesome! What an interesting shape that is!
So let me ask you how you are testing it? What chemicals are you using?
See here at TFP we also teach how to care for the pool on your own using your own test kit and stuff you can buy at Walmart and Lowes! The kids would love to do the "science experiments" for the testing and it is easy to do!
Let me know if you are interested in learning. We have all kinds of links and even videos. It is all FREE! (well except the test kit but it is cheaper than one trip to the pool $tore LOL). You can buy the kits on Amazon or the link in my siggy below.