yea that's the two way I was talking about, they do have some type of bypass for over 1000gph, not sure what that is. I think you will be a lot happier with the OM. Go for the 4-way, you seem to have the hole drilling down pretty good, whats a few more holes
, me I'm running all of mine over the top, you could do that with two of the lines if you don't want to drill.
I'm still not 100% on what pump I want to buy, I want to get around 1800gph to get a good wave effect, But I haven't found any info on what type of head loss you get thru the OM, I'm thinking around the same as a tee in the line, I'm still leaning toward the snapper but not set on that yet.