at 13in wide why cant you fit the pumps behind the sump or in front so easier to get to
That is a LF1-150S, which has an in-sump skimmer. Mine is external. I need to do some more math, but I think I can replumb it and turn the pumps sideways and maybe stack them to get it to fit. Guess I wont have room for a refugium though :-(
never mind I see now what you got there here is a link on you tube to someone running that setup under a 48in tank it shows the plumbing http://www.youtube.com/watch?v=v5cL1d34_uU
return pump looks like a little giant to me its a mag drive so no seal just 2 orings at the front and back of the pump housing just take note of the spacer placement when you take it apart. i have a model 3 that is 15yo still runs good remember that motor does req regular oiling. clean up the motor houseing and paint it with some red oxide primer and a coat of rustoleum paint. I cant see the skimmer pump side well enough to give any ideas on re-plumbing for length if you can post anther shot maybe can help you out and a down shot of plumbing too