Ok guys I have been running tsumani 1200gpm pumps that I have had a ton of priming issues ect. I want to make the jump to reversibles. Currently I have a single 1-1/4 thru hull and I am thinking that I can run two pumps off of that and install another 3/4 for the third. Am I going to have enough flow through the 1-1/4 to support two pumps?