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I’d like to put in a pressurized water system. I read through many of the threads here about the subject and have some questions…

1. Jabsco or Shurflo or something else?
2. Suggested vendors?
3. Read someone said the Jabsco was loud. Is the Shurflo any better in this regard?
4. If I add an accumulator tank, does is provide a certain amount of water (say… a cup or two) to be drawn without running the pump?
5. I see some accumulator tanks marketing about having a bladder so that air doesn’t touch the water. Is pressurized air directly on the water an issue? What does it do?... give me gas or something?.............Bvvvvrt!

Thanks.

I installed a pressurized water system and I am quite pleased with it. I used the sureflo Aquaking and I put a small accumulator tank that I purchased from Canadian Tire. I has a bladder in it this allows for a smaller tank to act like a larger tank.

The Sureflow is quiet and I can fill my sink before it kicks in.

Inquisitor wrote:I’d like to put in a pressurized water system. I read through many of the threads here about the subject and have some questions…
1. Jabsco or Shurflo or something else?

I have a Jabsco diaphragm type pump and it works nicely. Seen here:

Inquisitor wrote:2. Suggested vendors?

I'd just Google the brand and choose the cheapest outlet. The product is the same regardless.

Inquisitor wrote:3. Read someone said the Jabsco was loud. Is the Shurflo any better in this regard?

A diaphragm pump will thump a bit more than an impeller pump, but I isloated mine with rubber bumpers and it's really not bad at all. Mine is located under the forward dinette seat, and even there it's not objectionable. It's self-priming and delivers nice steady and strong flow. It supplies both the galley and head sinks with pressurized water. And advantage over an impeller pump is there's a longer service life before it wears out (the impeller can degrade).

Inquisitor wrote:4. If I add an accumulator tank, does is provide a certain amount of water (say… a cup or two) to be drawn without running the pump?

Many of these pumps say NOT to use them with an accumulator. Check the installation instructions before you head in that direction. An accumulator would indeed provide a delay, but then your pump would run longer when it did run, so it's a trade off.

Inquisitor wrote:5. I see some accumulator tanks marketing about having a bladder so that air doesn’t touch the water. Is pressurized air directly on the water an issue? What does it do?... give me gas or something?.............Bvvvvrt!

Well, without air the tank is less likely to develop molds and other icky things, I suppose. Otherwise, I can't see a difference.

About an accumulator, it depends on your most common use. An accumulator increases the amount of power drawn by a pump from its power supply. If you are going to be mostly on battery, don't use a accumulator. If you are going to be on shore power most of the time, an accumulator is a nice addition in that it decreases the number of times the pump runs. This is quieter, especially at night.

On a Mac that is actually used, as most are, and not a "Dock Queen", I would recommend against an accumulator. I have one in my camper. I do not have one in "Last Flight".

I use a Sureflo pump that is suspended below a floor I put in the undersink cabinet. I don't hear it at all.

Ken

I have a 25 gallon plastimo bladder under the rear berth of our M I bought the cheap faucet with the push button on it from west marine and it included a small pump which works quite and good enough..... Good enough so I dont have to hand pump and slow enough I dont waste water. Cheap did I mention cheap I got pump and faucet for about $65....watch for sales!