The bypass doesn't have a steady stream though does it? Any idea what kind of gph I should be looking at?

hillegom...that is what I have heard about the SCWDs. Not sure how accurate it is though.

from what I understand, you put the Bypass before the OM and divert the excess flow so the OM only seed the 1000 GPH

Ohhhhh, well that would defeat the purpose of having a pump over 1000 gph in my case then since I need to steal some flow from my sump pump for the fuge since it's a bit overpowered.

For OMs I didn't find the smaller version to work that well. The drum was magnetically driven and as a result would get stuck often from something as simple as couple grains of sand. It required frequent cleaning to keep it operational. Now the larger 4 way has a direct shaft driven drum which seems to keep going no matter what. For these reasons I would personally only go with a shaft driven OM, not magnetic.

SCWD's are just as bad...if not worse. At least the OM products can be disassembled to clean, only the 1" SCWD can be.

All OM's are mag drive now I belive

The 4 Ways are optional

From the OM site

Note: Mag Drive Upgrade - This option is for customers who already have an original version 4 Way and wish to upgrade to the new magnetically driven version.

The original ones were Shaft. If you buy one now, It's Mag. Thats why it says Original OM-4 owners upgrade.

Well that's a shame, it was a really good product but I wouldn't do the magnetic.

They have been magnetic for the last 5 years.