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Old 30-01-2013, 04:34 AM posted to rec.ponds.moderated
Phyllis and Jim Phyllis and Jim is offline
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First recorded activity by GardenBanter: Dec 2006
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Default Water turbine on a pond and waterfall

Wetoo run from small to large. As long as the pipe from the lower pond to the upper cannot siphon water back from the top pond, you should be OK if power goes off. If there were a siphon, your top pond would empty to the lower.

Will you have a veggie filter somewhere? That would be a third pond.