Fresh water pump anti vibration mount

[Viper]

Qr Bbpost Can any of those that have added an accumulator share the part number please?

Dave, you can go with a typical marine brand such as Jabsco, Shurflo, Groco, etc., or you can check what they have at your local Home Depot or plumbing supplier. While the marine brands will likely be easier to hook up to as some will incorporate ports that take typical marine plumbing/fittings into account, you can get adapters to make any plumbing hardware fit. Marine specific units will have the advantage of being designed for the marine environment such as plastic, stainless, powder coat, etc. but I've had much success with residential units in previous boats with no signs of rusting while I owned them. Having said that, I would only go with a marine unit in a salt water application.

The bigger the unit, the less your pump will cycle. These are not plug and play unless you end up with one that happens to be precharged to the appropriate level taking your system's working pressure into account. This will depend on the pump you currently have. You'll need to know your pump's operating pressure to do this right. Read the instructions and adjust the precharge pressure accordingly.

[Sadey]

Thanks Viper! So it’s a standard accumulator physically sized for our space then “calibrated” for system requirements.

Gotta love this forum. $$$’s worth of advice and help for the cost of time to type the question.

[amanphoto]

This is my new pump system.

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[mjk1040]

Aren't those rubber mounting legs on the new pump? I just installed a new SeaFlo with the rubber mounting legs like your picture and got to tell you I can not hear it run unless everything in the boat is off. You shouldn't need any additional hose under that new pump if they are rubber mounting legs. You may need something under the bladder tank. Would like more info on the pressure tank if you would.

[bud37]

Qr Bbpost This is my new pump system.

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Double check your wiring gage sizes to see if they can handle the new pump amp draw. Might be fine, just compare the numbers.

[Midnightsun]

Double check your wiring gage sizes to see if they can handle the new pump amp draw. Might be fine, just compare the numbers.

Good catch, unusually high amp draw at 20 amps shown on that motor.

[mjk1040]

It appears he's doubled the volume and pressure that he had with the old pump. Hope the plumbing will take it!

[tomschauer]

If it takes dockside water, it should take that pump. But with what is most likely 1/2" gravity feed supply, it probably wont see full 5.0 gpm flow after the accumulator empties. Wont hurt anything, and you can always dial back the pressure switch if needed.

[mjk1040]

Most shore water connectors have a built in pressure regulator and backflow preventer in them. And I believe the pressure regulators are at about 30 psi. Looking at the pictures of the old pump I think it said 45 psi so I guess he didn't double his pressure or gph after all. He hasn't got back on the bladder tank though. That seems like a good addition to any water system to me.