My suggestion is to take the pump off and inspect, three bolts on pump and one for steering. I replaced my intake grate and it's a 3 hour job to take off. The three intake grate bolts have nuts on the inside, so you have to take the ski apart to access them.
I had oone of my skis suck something up last weekend and I just knew it was the wear ring, I pulled to shore and inspected, wasn't broken. Wouldn't get on plane, finally I nailed it a few times and whatever was stuck came right out