Question about filter hose routing
I am begining to wonder if there is a better way to route my hoses from my fx5. Below is a picture of how it's set up now. I have the hoses looping like this because I have always heard it's better to have long looping curves as opposed to tight corners. But, I have read a lot of stuff recently saying that doing this could cause air to get trapped in the hose. It hasn't been an issue with the fx5 because of the auto purge that it does. But, I have a Cascade 1000 (soon to be upgraded to an API XP XL (XP4)) on the other end of the tank. I have the hoses run in a similar fashion and have a terrible time getting it to prime, which I think might have to do with the way the hoses are routed. I have also noticed summer micro bubbles coming out of the output. So, I am wondering if it would better to put some 90 elbows in such a way that I can remove the loops. I realize I may lose some flow, but I'm not too concerned with that as these two filters on a 125 gallon should be plenty. What are your thoughts?
Also, you may not be able to tell from the pics, but the tank is drilled and the ball valves you see are attached directly to the bulkheads in the bottom of the tank. So, there's not a lot of room to work with under there. But I think I could make it work if I install the elbows, turn the filter around, and criss cross the hoses.