One of the issues I would like to address on my new-to-me '79 Endeavour 32 over the winter is a better pressurized water system.
I have in place an old belt-driven, piston style pump, not exactly, but kind of like this:
The pump is currently installed without any kind of expansion or accumulator tank, so while it delivers good pressure, it can only store up as much pressure as the flex of the plastic lines allows. It also seems to have no pressure sensor of any kind. This means you have to keep periodically running the pump to pressurize the system. If you don't turn the pump off in time, it will thermal protect itself, and will not come back on for a while.
Not the worst situation ever, but I could do better. As I am in my first shockingly expensive year of old boat ownership, I'd like to keep the cost modest.
I am wondering if I should install an accumulator tank into my existing system, as that would allow me to store a lot more pressure and use the pump less frequently. Or should I replace the current pump with a sensor switching pump, or replace the pump AND add a tank.
I can low-buck a 2 gallon hot water expansion tank from Home Depot for $50. A pump will run me maybe $120. However I have seen these pressure sensing ones with the explicit direction to NOT hook it into a system with an accumulator tank, so I think they would cycle a lot - but at least they shut themselves off.
I am a little confused now. Any input?
Thanks in advance,