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Old 07-09-2018, 05:03 PM   #1
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Default Shower drain 99 scr 3000

Been looking around, currently every week since shes been on the water she has a bit of water that backs up throw the shower drain.

The toilet was fixed before we purchased and I'm curious if anything there could be the issue or if its common to have water back up.

I'll snap some pictures and post soon. The red pump switch turns on and drains it out but water comes back in shortly thereafter.
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Old 07-09-2018, 10:09 PM   #2
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Shower and toilet have nothing in common.

Are you running the AC? If so the condensate line may be routed to the shower sump and filling it? If you leave the red switch on does the sump drain? There should be a float in the sump to turn the pump on and off as it fills but the red switch must be on.
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Old 07-10-2018, 11:30 AM   #3
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No sumps in the 3000.. The drain is directly plumbed to the discharge pump.
It could be just the back flow from the water remaining in the line once the pump is off and works its way back past the pump.

Crappy design to begin with and it places the pump (similar type as the fresh water) down low in the bilge.
I've replaced the whole thing with a custom sump box with a standard bilge pump. It cycles frequently during a shower due to how small the box has to be to fit the space, but it does the job and any backflow just stays in the sump.

John
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Old Today, 04:35 PM   #4
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My pump just went out on the shower, does anyone know what the pump is specifically or can I just exchange it with any 12v marine pump??
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Old Today, 04:37 PM   #5
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Quote:
Originally Posted by jparsons121 View Post
No sumps in the 3000.. The drain is directly plumbed to the discharge pump.
It could be just the back flow from the water remaining in the line once the pump is off and works its way back past the pump.

Crappy design to begin with and it places the pump (similar type as the fresh water) down low in the bilge.
I've replaced the whole thing with a custom sump box with a standard bilge pump. It cycles frequently during a shower due to how small the box has to be to fit the space, but it does the job and any backflow just stays in the sump.

John


Absolutely a crappy design, like you said backflow. I cleaned the screen and it worked like a charm. Since no backflow.
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Old Today, 04:46 PM   #6
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Cant you just put in a backflow preventer/check valve and it would stop the back flow problem?
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