basslover,

I like your idea about splitting the duties for each pond.

Does anyone on PB with a multi-use pond know how much the "humans in the pond activities" affect the LMB - especially if it is mostly confined to one corner of the pond?

I assume keeping toxic substances out would be the most important consideration. Does SPF 50 sunscreen count as a toxic substance? (I have a lot of gingers on one side of the family.)

Thanks - Rod