April 13 GREAT NEWS: chlorinated water in swimming pools inactivates cov in JUST 30 SECONDS https://www.dailymail.co.uk/sciencetech/article-9465679/Health-Swimming-pool-water-inactivate-COVID-19-virus-just-30-SECONDS-study-finds.html
April 27 SORRY FOLKS. Chlorine shortage. Too expensive. Guess there will be a lot of green pools https://finance.yahoo.com/video/chlorine-shortage-wreck-havoc-summer-141620368.html
Salt water pools reduce the required added chlorine, but you still need to add it every once in a while.