Hi Roger,
While that model of water pump may no longer be available, Schurflo and Jabsco are both still in business as far as I know, and make decent water pumps. When I have seen them at various chandleries they specified different strengths of water flow depending on how many water taps you have. Most E30+ have one galley and one head tap, so should be easy to find a good pump for two taps, with a similar flow rate to your current pump. Buy one that fits your existing hose and coupler size. I've seen them for about $150 Canadian $.
Hope that helps.
Frank
