One of my sea pump impellers let go this weekend

....and yes I did find parts of the impeller downstream toward the cooler. Took the hose off at outlet of strainer (salad bowl)...took the input hose to pump and held it in down position while Admiral sprayed water in reverse with hose end sprayer...saw a few pieces come out
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
New Edelbrock 1409 carbs (working like a charm)
Original Electronic Ignition, Blaster 2 coils, 90 deg plug wire universal kit cut to fit
Raw water system
Freshwater always
Located Pickwick Lake, TN,MS,AL
RETRO BOATS ARE COOL
If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.