I am a new pool owner. I am having trouble with free chlorine levels. Is there a way to check if my salt water chlorine generator is working properly? We've cleaned our filters, wire seems to be connected. We turned it up to 100% to see if this helps. Cya levels were normal (lower normal). Should we be able to see bubbles/cloudy effect as water passes through the salt cell? Sorry if this doesn't make sense....we're new to this.