Tested the water with the pool kh
test kit and got 40ppm. This test kit has three solutions to add. I'm assuming it is the better one due to the number of solutions to add.
Tested the water again with the API kh
test kit and got about 55ppm. This test kit has one solution to add. Fairly pleased with the result.
Last test was with the pool cardboard strips and these may be under-reading a bit.