We have two jabsco
parmax pumps, one for the fresh water system and one for raw water
. I think they are 5 or 6gpm -- either way I believe their pressure switches are 4.3bar.
For better or worse, unless the Yanmar
is running, one can hear when the pumps turn on; as such, I believe I would soon know if there were a leak. Sometimes when I hear the pump turn on intermittently I will check and see that someone left the aft deck shower
on or some such thing.
What would you like to know about the setup? It is pretty simple -- on the fresh water side there are two valves controlling which freshwater tank it pulls from. There is then a T. One side of the T runs through a charcoal filter (or maybe the filter is after the pump?), and then to a strainer and then the pump. From the output of the pump it runs to many places, including the hot water heater, the sink and shower in each head
(x3), the galley
sink, on-deck shower, ice-maker, washer-dryer, dishwasher, to the flush port on the water maker, and maybe a few I've forgotten. The washdown setup is even simpler -- coming from the fresh water tank
T, above, there is a check valve and a ball valve and then a T. Coming into the other side of this T is a hose from a seachest/strainer and a ball valve. The third leg of the T goes through a strainer to the input to the deck
washdown pump. I use a freshwater system pump because Xylem said I could and I had an extra one as a spare when the previous pump died. From the output of the pump there is a T and hoses to two deck fittings. There are ball valves below deck near each fitting.
I generally keep the valves set to salt-water washdown (as opposed to fresh).