Straight out to the garage after work 30 mins later and its stripped down, impeller has lost all its blades, ive found a few of them but will flush out the lower leg and see what I can find.came apart easy , no corrosion on any of the bolts/ fittings, all looking fairly clean, impeller housing has a small mark but think it will be ok.....so, next question 
.....do I buy off ebay or go to my local marina ?
.....do I buy off ebay or go to my local marina ?
One, is never going to be enough.....