Irrigation line is super cheap, most hydro stores will sell you tubing by the foot also.okay so, I can only find 10 feet, and i only need 3 feet. I'm on a tight budget reason I can't just go blow money on 10 feet of tubing, 7 feet never to be used. I found clear tubing sold by the foot on ebay. but I read somewhere that clear tubing is a no no because of algae build up in the tubing. if no one will help me I guess I'll just have to live with a clear tube turning green in the inside.