If you ever buy a red sea tank, throw theie plumbing directly into the trash.... I did custom plumbing for mine, but unfortunately I broke loose one of my glued elbows so I have to redo it. Right now im using the red sea drain line and it is garbage, I can't get it to stop gargling every few minutes. The spearss gate valve I had on it worked 100 times better. I know make small adjustments. Sorry just my little rant!!!