Yes, that is one of the advantages of hydraulic systems. The new tabs can be simply "teed" into the existing ones on the same side. They will be a bit slower but will work together as one big tab.
Tom
Bennett Marine
Tom, I don't want to side track this thread but just a general question about something mentioned earlier. Does Bennett recommend against having an anode on the running surface of the tab for all installations? Our 290 Sundancer has the anode on both sides