You had to ask... That darn big pipe hasn't been thrown through the window yet.
I have plumbed and ripped it apart three times now.
-I have broken the threaded output fitting, ordered another one, received something completely different
-Installed the Venturi backwards
-Had countless leaks
-The pump plumbing is all in metric
-The metric outlet pipe wasn't seal the uniseal fitting to the skimmer
Ultimately I am sanding down 3/4" pipe to fit the metric outlet elbow sonce I couldn't find a reasonable Tap and Die kit nor metric plumbing
I'll be done when I build the patience to plumb it one more time!!!!!
So how could I plumb a closed loop with 14 outlets, a spray bar, and ocean motion without a leak and yet be on my 4th attempt with a silly 30min skimmer plumb job?? That's DIY for ya..