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Old 07-05-2019, 10:44 PM   #1
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Default Shower pump

Hey yall!

Just picked up a 1990 2700 scr, been working through a couple things but I have some questions about the shower!

1) does it have an accumulation tank or just a pump.

2) is the pump located next to the fresh water pump

3) does this water get pumped into the holding tank or does it go overboard?

4) if it does just go overboard has anyone just ran the hose straight into the Bilge?

5) do I have enough room to put an accumulation tank in?

6) does anyone have a recommendation for a new pump or the right size accumulation tank?

Thanks

Mike!
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Old 07-06-2019, 12:04 AM   #2
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My shower sump pumps over board... No clue about an accumulation pump.
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Old 07-06-2019, 12:13 AM   #3
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The shower goes into a sump container that has a pump that discharges overboard. The sump is typically located near the head area and in my case is under the frig. I would not let it go directly into the bilge as I would not want soap residue in there.
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Old 07-06-2019, 12:17 AM   #4
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I'm still lost on the accumulation tank? what is that ?
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Old 07-06-2019, 03:34 AM   #5
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I have what looks to be a black Bilge bump with black hoses coming to and from it under the stairs near the water pump. Would that be it? I dont know if I have an accumulator tank.

And an accumulator tank is a plastic tank with a Bilge pump in it. The Bilge pump has an automatic float switch in it. When the water from the shower goes into the table the Bilge will automatically turn on. When you turn the shower off the tank will empty and automatically turns off. It reduces the need for a on of switch for the shower pump and reduces the likelihood for a back up.
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Old 07-06-2019, 09:28 AM   #6
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I always called that the shower sump. Turn on the wall switch and it pumps overboard when taking a shower. Sure makes a great racket when on.
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Old 07-06-2019, 12:50 PM   #7
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Quote:
Originally Posted by jimq26 View Post
I always called that the shower sump. Turn on the wall switch and it pumps overboard when taking a shower. Sure makes a great racket when on.
Im with Jim as I always hear it called the shower sump.
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Old 07-06-2019, 01:00 PM   #8
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Okay so it’s just a pump then. I need to pull that one then and test it. Thanks guys!!
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Old 07-16-2019, 01:29 PM   #9
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You are attempting to address two unrelated concepts in parallel.

Water Tank holds freshwater. There is a pressure pump that pushes water to the faucets when a faucet is opened. The pressure pump shuts off when the pressure between the outbound side of the pump reaches a pre-configured level. When a tap is opened, the pressure drops and the pump kicks on.

An Accumulator tank CAN be installed on the freshwater system somewhere after the pump, but before the first T in the lines. It is pressurized and can be used to reduced short cycling of the pressure pump. They are nice to have, but not typically installed from the factory.

The sink and basin drains can be installed in three different ways.

1) Gravity: From basin drain to through-hull which dumps overboard*. This is common with the galley and head sinks.

2) Sump box: water drains from the basin (most commonly 'shower') into a small watertight box which contains a float switch and a pump. When the box fills, the float switch rises and the pump is actuated. The pump then discharges the water from the sump box overboard*.

3) Manual Discharge Pump": Some showers are plumbed from the shower drain directly to a pump. The pump is then plumbed to a through-hull which goes overboard*. This requires that you manually flip a switch to run the pump to drain the shower.

*Coastal boats are plumbed to discharge greywater overboard. Many, inland water (lake and river) boats have a grey water holding tank. Sink/basin discharge is sent to the greywater tank rather than overboard.
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Old 07-16-2019, 02:03 PM   #10
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I have #3 and for the time being I just dropped the shower drain into the Bilge cause my pump is dead and I have to wait to get a new one. We won’t use soap or anything until I get the pump but it’ll be nice to just rinse off

Thank you for explaining everything!!!
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