The municipal swimming pool at the North 22nd Street Park opened Monday and kids are enjoying the opportunity to cool off from the triple digit heat.The swimming pool comes complete with a water slide and a smaller swimming area for babies and toddlers.It’s a place to have fun, but there are a few general rules to follow.Those rules are posted on the door. Many of them are pretty straight forward.One rule is that any child under the age of 12 must be accompanied by an adult at all times.The pool employs five lifeguards, and a pool manager who can step ...