The other day while idling to the beach I must have gotten into an area that was quite shallow and I think my ski picked up some sand. Once I got it into depper water it started right back up and seemed to be ok. I checked the impeller and wear ring and nothing appears to be damaged. Is there anything else I need to check on. Once you pull the ski out of water and you start it does that clear all of the water out of the system? Thanks.