There are many posts I have written on this forum that link back to some Deep End threads, most notably Pool Water Chemistry, but many of these links are broken. As I stumble upon some posts with such broken links, I am fixing them, but a global change/substitution would fix them much faster. For example, change the following link (that is broken)
that is the intended post. If you can figure out all such broken links and fix them, that would be great, but I understand that may not be easily doable.