Instead of using a tee in the return line from the Hydro Boost I decided to run separate return lines back to the pump. Installing this bulkhead fitting was a little tricky since I didn't remove the pump from the engine. I ended up stuffing some rags in the pump then I put grease on them to catch any shavings. I also used some magnets inside the pump as an extra precaution to catch some metal shavings.