We've opened the pool, even though it's too cool to actually get into. We have a small in-and-out wood side deck next to our above-ground pool, and need to apply water sealant to the top. Husband would prefer to use the sprayer, because it's quicker and easier and he swears he will try not to get it into the pool water. We all know that's impossible, at least some will mist in... but how big of an issue would that be? Would the chlorine take care of it? Would such a small amount make a difference? Should I be dictator!wife and make him use the brush?