The other day I started on a rainwater/spring capping project when complete will give us 4150gal of water storage, 2500 rain runoff from the barn, 1100 from the house, and 550 from a spring I'm capping on our property. I've already picked up the tanks and designed a first flush system to divert the first few gallons of dirty rain water from the roofs, I'm using the smallest tank to store the spring water witch will be our main water source of water. The rain collection is pretty simple water flows down hill, but I've never capped a spring. Has anybody done this before? I could use a few tips on how it's done and what not too.