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Old 17-12-2024, 00:13   #16
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Re: Shurflo water pump and accumulator issue in Bavaria

Funny!
So many replys…
The accumulator is just an empty bottle.
If the bottle looks empty it’s full of water (as „The Captain“ already said). It has to be empty to accumulate the pressure as compressed air.
If the accumulator is just a single liter the pump has to cycle as as soon as you take more than a glas of water.
To avoid that the accumulator has to be larger.
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Old 17-12-2024, 03:22   #17
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Re: Shurflo water pump and accumulator issue in Bavaria

The reason for the accumulator is that it takes up the expansion volume from a boiler in a hot water system. To do so it HAS to be empty and upright (connector to floor) as you install it and the water is cold. In case it is full of water with no compressible air in it the expansion from heating up the water will burst the system.
It is actually an expansion vessel and not an accumulator.
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Old 17-12-2024, 13:10   #18
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Re: Shurflo water pump and accumulator issue in Bavaria

If you have a Shaefer valve, similar to a bicycle, my guess is that it is an accumulator. If you can't find any specs, pump it up 10 psi at a time untill the cycling stops and you get a steady flow. That is the primary purpose of the a accumulator. You shouldn't go any higher than the pumps capability.
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Old 18-12-2024, 10:30   #19
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Re: Shurflo water pump and accumulator issue in Bavaria

My accumulator tank needs to be pressurized with an air pump, originally at gas station, and I check the pressure with a tire pressure gauge.
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Old 20-12-2024, 20:15   #20
Rjt
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Location: Started from Pittwater, Australia. Cruising Australian east coast.
Boat: Bavaria 44
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Re: Shurflo water pump and accumulator issue in Bavaria

I owned a Bavaria 44 until recently. Yours looks like the standard Bavaria accumulator. There was no bladder. And no pressure adjuster. Mine required filling about 3/4 full with water. You should see air in the top.
Mine had a slight leak from the bottom of the tank fittings, so until I found & fixed that it gradually lost pressure.
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