Hi,
What do you guys think. Will this work, or would it be a stupid idea for an auto top of that does not use a float swich, pump, or power... This idea (as illustrated below) is to have a a bottle (say a 2L pop bottle) suspended upside down ofer a sump with the mouth just in the water. Natural pressure will keep the fresh water in the pop bottle. As the water in the tank evaporates, the level will drop, eventually bringing the mouth of the bottle above thewater level, causing fresh water to rush out of the bottle and and refill the tank to a point back about the mouth of the bottle. The system will them automatically stop.
What are your thoughts?
Thanks!