Usually all the accumulator tanks
have a "tire valve stem" on them so you can pressurize the tank again, but you need to check the owner's manual to see what the air pressure should be.
- - The purpose of the accumulator tank is to hold an amount of water
(depends upon the size of the tank) and then keep the boat's potable water
system pressurized even when the potable water pump is not running. However, the amount of water is small so it quickly is expended and then the water pump restarts when it senses the water pressure fails below its preset low limit.
- - The purpose of the new VSD (Variable Speed Demand) pumps is to eliminate the need for an accumulator tank. The pump uses very low speed to keep the pressure up and as demand increases the pump speeds up.