All impellers got some surfacerust on them. I'm always flushing my ski after use. I really don't think you'll damage it by flushing it a day later or so.
That's what I have been hearing from a number of people.If it's fresh water then it's fine ...
Thanks for sharing that, good to hear it also from someone else. Is the spark your first PWC or do you come from a background in PWC's?I ride in only freshwater and flush it after every use. This thing is my baby, why let it get dirty inside. I flush it for a minute at most then store it. Its easy and simple. Even in fresh water you can suck up dirt and anything else in the water. Always air on the side of caution. Always flush it no matter what
I was in Mill Creek this past Friday just north of Annapolis. Rode up to a buddy's floating pier and walking off the pier looked at the stern of his boat in the water. His propeller and the externals of his inboard were completely covered over in gunk. His waterline didn't look good either. You mention 6 days and you see scum. I didn't know it happened that fast. His power boat must have been in the water forever. I'd be freaking out if my nozzle on on my Spark looked like that. Though mine get pulled at the end of the day to dry but until you flush a little bit of Chesapeake Bay still lingers in there.I ride in the Potomac, and right now mine is sitting in the salt water next to my sailboat for the night. Sometimes I go 3 days that way.
No big deal, If the time frame is short. My old jet ski was in for about 6 days, and then I noticed scum on the bottom.