That's only 5 gallons a minute. I think a bath tub runs about 3 gallons a minute.Unless you have more springs in the pond itself, that's not enough to keep a 1/2 acre pond cool enough for trout in the heat of the summer.

My 1/10 acre trout pond is fed by 2700 gallons an hour. I still climbs to 68 F. on the surface in the summer.

Last edited by Cecil Baird1; 02/29/12 10:31 PM.
If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.