As a first time hot tub owner this book helped me keep track of what I needed to do to care for my ht.

Found products I needed, at the right price, which were delivered promptly.

works well for all your hot tubs records and maintenance needs.

This product doesn't match the order of the testing strip that I use, so as a novice hot tub owner, I always have to do a double take about how I am filling it out. Basically not intuitive to my setup. I am going to probably develop my own chart tailored to the test strips I use and in relation to the chemical products I use.

This log really assists me to keep track of the chemicals I add and how often!!!