We have a 60,000 gallon pond with a waterfall. Our pump recently died due to a garden tool getting stuck in the filter area. We were wondering if we could forgo purchasing a new pump until spring since it’s already October and we usually turn the pump off around November anyway. Will not having the pump running for the next month have a negative impact on the ecosystem?

Just keep in mind you will need an aerator for oxygen when you have koi and/or goldfish in your pond. When the temp gets down to below 30 degrees you also need a Deicer to keep a hole in the ice for the toxic gasses to escape. These gasses will kill koi.