Thanks for confirming that. I am pretty sure there is no accumulator in the water system. In looking at the label on my old pump it has the following info: Open flow 2.8, Amps 7.0, GPM 10.6 (this seems very high when looking at the new pump specs). My water demands are pretty basic: 1 sink in the galley and 1 sink in the head with a combo faucet/shower. I am thinking that the Jabsco PAR-Max 2.9 Water Pressure System Pump (http://www.defender.com/product.jsp?path=-1|51|2234226|2234231&id=1449462 ) is probably a good match. Any comments on this pump selection or is there something else you would suggest?