For the next few days I am beta testing a major revision to my Pool Calculator. You can access the beta test version at Pool Calculator.
There are two major new features. It now calculates calcite saturation, for estimating the risk of paster corrosion or calcite scaling, and recommends target FC levels (including for SWGs). There are also some changes to the layout and minor improvements to the pool volume calculation.
This is a beta test version, as such not everything may work correctly and amounts of chemicals or other calculations might be wrong. Because of that I am leaving the old version up at the normal URL for the next few days. When this version has gotten more testing I will replace the previous version with the new one at the normal URL.
I welcome any testing, feedback, or comments you may have!