Originally Posted By: Stanb999
Thanks...

You just made this actually cheap and easy!

I was thinking wood but had second thoughts. LOL
What do you think if I used rough sawn 2" planks for the floor. with a heavy foundation of 4x4's on the blocks. For the sides I could use 1" planks with supports every 2 feet. Cover it with the membrane.. Do you think it will work?


Sounds like a plan. You may not have to engineer it as sturdy as you think.

Originally Posted By: Stanb999
I was thinking of putting it off to the side of the main spring flow so I wouldn't have to worry about a "flood" event.


Good idea.

Originally Posted By: Stanb999
I would put the pipe into the spring it's self so if the pipe is full it's all she gets. I was thinking a 3" pipe. The one in the picture is 6" drain tile. I don't want that kind of flow into it.


I would go much larger than 3 inch, probably the 6 inch. You could always put in a homemade designed gate value to divert any excess flow. My 4 inch pipe with 45 gpm is full. Gravity flow water takes up more space than pressure flow. I would always go bigger than needed to play it safe.

Originally Posted By: Stanb999
I figured the "flow" at half of what it is. The slowest flows are in winter when the ground is frozen. Summer is pretty steady at the 20GPM.. I was thinking 10 GPM for the safe side. With a tank the size I describe would 100 trout be out of the question? I know it has to do with the flow.. But they need some room right?


Sure looks like a lot more than 20 or 40 gpm. Are you sure?I would try and capture as much flow as possible. More flow is always better than not enough.


If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.