The concept is fairly simple what I did was use PVC. Since my manifold crosses over my fugue area I just put a ball valve facing down to the fuge if you can do that then you can use a flexible polyvinyl or spa flex, but you will have to figure out a way of mounting or securing it some way so it doesn't move around. I used junk I had around the house so I made mine with a 90 elbow. But I would recommend a tee that way it's centred. As soon as I have time I will make a quick one and post some pictures in the diy section for you. But you drill a bunch of small holes so snails and stuff can't get in. I only drilled a quarter way around the pipe and positioned it against the wall spraying toward the return section and with the ball valve you control the amount of flow
I've been running it since I put together my tank almost two years ago and have never had any salt spay problems. The flow is fairly fast and it's good because at low volumes it still makes enough flow to keep the macro tumbling
