I have this pump: http://www.flotecpump.com/ResidentialProduct_fl_ut_wr_FP0S1300X.aspx
1/6th hp is plenty for a 25-ft IC. I actually have a little garden hose ball valve on the pump output. It's about half open.
I've been using this pump since 2009 for probably 15 to 20 batches per year, so it seems pretty reliable.
It also comes in handy pumping out a flooded crawlspace.