Thanks for the replies! Pedialyte is something I've tried in the past. Unfortunately if I recall it also had a lot of sugar which is something I do prefer to avoid as it tends to increase my frequency. Sugary drinks especially on warm days go right through me like water.
I neglected to mention in my first post; I'm ideally looking for something that would be portable that I can take with me for a quick boost when I need it, especially because I am more active than I used to be. Potassium chloride is sold as a salt substitute and can be added to drinks and I'm wondering if that's something I can try, I just wouldn't know how much to use. There are also electrolyte gels and gummies sold for marathon runners/cyclists but again you're dealing with the high sugar issue. I shall continue to investigate!