withthe luck I have had, I would or should rename my boat to a SS-!!! as the one I have now sank now three times., and the mighty Puddy-Tat sank so many times (due to a slight leak, and leaving the drain plug open) that I cannot count it. We never used a periscope on it. Just pumps. However the Puddy-Tat never dived when it was moving, only at the mooring.
