Originally Posted by JohnRPollard
My gut feeling on this is that the higher pressure/volume pump will not solve the pulsing (might make it worse). Normally the problem you are having is addressed by adding the "expansion" tank mentioned above.
Just to be clear - my post about my high pressure pump wasn't meant as a cure for your pulsing or mine as I have an accumulator tank. My pump either needed rebuilding or replaceing and I chose replaceing. I just wanted to share my self-generated problem in case someone does need or wants to replace a pump with something other than the one that came with the boat.