Why did I buy this pump (Poseidon PS4)

So I was cleaning today and came across a brand new Poseidon PS4 pump from Bayside Aquarium... but I can't for the life of me remember why I bought it... I've had it in a closet for at least 2-3 years now, and I just can't remember what I got it for.

I'm sure I bought it in preparation for my 180g build (finally starting that) but ...why did I buy this pump? Would it make a decent return pump? Did I get it to feed my chiller in the summer? To move water from the sump to the refugium?

I hate it when I forget what I buy expensive things for :\


Oh look, derp: http://www.3reef.com/forums/show-off-your-fish-tanks/greysoul-180g-reef-build-85415.html

damn I've had this tank for 4 years now, I should use it.

 

I couldnt read your post cuz i couldnt stop staring at those back boobs lol

 

my back boobs have been a subject of some discussion around here for a while now... I was on hiatus for a while, but now the back boobs are back.

Re-starting that 180g tank build I started 3+ years ago