sank

I have a 2011 260 rxpx son had it riva exhaust hose (installed by previous owner) came apart poor install. But the ski sank flushed ski with in minutes. But i cannot figure out how water got in the oil? I thought the oil system was sealed? The intercooler was completely full of water flushed...

Hey yall took the seadoo out for a test ride before the summer today... Ran GREAT, then realized i was sitting real low.... and figured out i did not finish tightening one of the drain plugs! the water was below the top of the cylinder heads just above the battery and all... it was only...