I WAS USING A 9.5 MAG PUMP ON IT AND IT WORKED FINE. I AM KEEPING THE PUMP, ALL IT NEEDS IS A PUMP TO RUN, I WAS USING IT INSIDE MY SUMP, BUT HAVE ONLY USED THE SKIMMER FOR 6 MONTHS, SO IT IS IN GOOD WORKING CONDITION. I DON'T GO TO SAN ANTONIO THAT OFTEN, BUT WILL SHIP.