according to the picture it does not look like your ski has a water hookup to flush it, in that case I would think you could tap into the hose that comes off of your jet pump and flush it that way, but before doing so make sure that is ok.....I would think it would fine as you are putting water in where it naturally comes in from the pump, there are also flushing kits you can buy and install then it would always be there, would be a great improvement.