Noob question
I'm plumbing a manifold into one of the return lines on my IM 75EXT . The plumbing was included with the tank ( I built the manifold myself ). Should the open side of the valves on the manifold be capped until used or just left open?
Thanks
I'm plumbing a manifold into one of the return lines on my IM 75EXT . The plumbing was included with the tank ( I built the manifold myself ). Should the open side of the valves on the manifold be capped until used or just left open?
Thanks