Good Morning everyone i was on the boat yesterday commissioning my water system and I was trying to get pressure in my lines and was only to get a trickle...I empted all the pink antifreeze but was unable to get good pressue in the showers. I have a galley sink , 2head sinks, 2 showers and a transom shower. I checked all the lines and found no air leak...then removed the water strainer no clogs..refilled the cup with water and tried again still no pressure...finally I removed my pump...a Jabsco 3 gpm 1986 pump...with no accumulator tank. i examined the pump and found the diaphram has a crack in the housing that prevents pressure from building......Now on to my question. now Im buying a new pump. I want to upgrade the system... i want to install a pump large enough to provide ample flow for all the outlets and I want to install an acumulator tank to minimize pump cycles. Can you help me with my selections???? There are 2 assembled units in the west marine cataloge...pumps and accumulator tanks..The Shurflow dual head combo 5.6 gpm @12v for $359.00 and the Raitain combo 3.8 gpm @12v for $369.00....The combo by Graco Pargon jr for $809.00 is just out of budget. Or shall I look at assembling my own system???..there is a s/s steel tank for $129.00 and then hook a sep pump....maybe another Diapharagm with a higher Gpm then I have now??? At this point the goal is good water pressure and quantity of flow.as number 1 priortity......if you had your ultimate system what would it be??? Thanks Rob