Initially my level dropped about 1/2" a day, I attributed it to evaporation and splashing. For the last two days it has dropped about 1" so I think I have a problem somewhere. I would like to shut the pump down to determine if the problem is in the stream (45 feet long with two seams) or in the pond itself. Is it too early to shut things down and will I loose the beneficial bacteria that has been building up for the last few months? The weather is in the 60's but is suppose to drop to the 50's next week.