Sump Pump Is Pushing Water Up Into The Bath Tub. Eh? - Plumbing - DIY Home Improvement | DIYChatroom
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Old 12-07-2012, 06:28 PM   #16
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Might be onto something here. As I said, we have two sump pumps. The one up front hasn't been used since we've been here, but it's got an identical pit, identical pump, identical setup, etc as the rear pump. The only difference is the rear pump gets used heavily because it's used with the clothing washer, so it's constantly offloading that, hence my issues above.

I traced the pipe that comes from the front pump. It goes to an entirely different location on the far right side of the basement. Look at these images:

http://imgur.com/a/ThyT2

Think I can just hack into the pipe, add a Y, and add the rear sump pump to it? Would a clothing washer dumping into (what I assume) the pipe for the drain field be okay?

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Old 12-07-2012, 06:55 PM   #17
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You don't want solids like lint clogging up a buried drain field.
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Old 12-07-2012, 06:59 PM   #18
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So if I'm understanding this properly, the optimal plan would be to have the washer drain right into the sewer line, and have the sump pump (including the sink down there) dump into the drain field. Eh?
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Old 12-07-2012, 09:10 PM   #19
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Huh?????


The sink and the washing machine should be piped into the sanitary sewer system which you said was a city sewer system. They have to be properly trapped and vented. The sump pump basically receives rain water from around the footers, and can be pumped out of the basement, usually onto a slash block.

Your term drain field is applicable to a septic system. Its important to use the correct terms if you wish to be understood.
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Old 12-07-2012, 10:33 PM   #20
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Quote:
Originally Posted by jagans View Post
The sink and the washing machine should be piped into the sanitary sewer system which you said was a city sewer system. They have to be properly trapped and vented. The sump pump basically receives rain water from around the footers, and can be pumped out of the basement, usually onto a slash block.

Your term drain field is applicable to a septic system. Its important to use the correct terms if you wish to be understood.
I'm just using the terms that were presented to me during the inspection. This situation has several different angles, though. The washing machine and sink need to go into the sewer system. Okay, fine... I can get a hose extension and likely hook it up to the sewer pipe along the ceiling. But the sink on the other hand... I have to figure out some way to get the water from the sink to "lift" up to that point. I think that's why they just opted to put the sink/washer in the sump pump since it was just easier (even if it may not have been entirely correct). Hmm...
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Old 03-08-2017, 07:53 PM   #21
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Re: Sump pump is pushing water up into the bath tub. Eh?


Apologize for the inexperience. I have a sump pump(in unfinished storage room) in a finished basement. Everytime there are issues with it(alarm), it causes water to back up into the basement tub. ARS / Roto Rooter frequently have to come out to "clean" the float switch/clean it out. Do I have a poor plumbing design? Why/how does the sump pump connect to the basement full bathroom?

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Old 03-08-2017, 08:10 PM   #22
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Re: Sump pump is pushing water up into the bath tub. Eh?


I didn't bother reading the 5 year old posts, but a sump pump (for removing clean ground water) should not be connected to your household plumbing. If your sump system is connected to a basement (laundry?) tub or basement bathroom, it is improper. Because of that, your pump may be getting fouled by discharge from these other sources.

If your sump is in an unfinished space, you should be able to see where the discharge goes. In most, but admittedly not all, cases, the discharge is simply a pipe that goes straight up and exits through your exterior wall. Run the laundry tub and/or the fixtures in your basement bathroom. If you see flow going into your sump pit, there's your problem.
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Old 03-09-2017, 04:28 PM   #23
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Re: Sump pump is pushing water up into the bath tub. Eh?


Your sump discharge should be plumbed to a 4 inch or larger drain. The pump is a pressurized discharge and will cause many issues if not plumbed correctly. Sanitary drains are based on a gravity drain not forced pressure.

Apparently some idiot installed your sump with the wrong pump.
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Old 03-09-2017, 06:14 PM   #24
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Re: Sump pump is pushing water up into the bath tub. Eh?


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Originally Posted by Ghostmaker View Post
Your sump discharge should be plumbed to a 4 inch or larger drain. The pump is a pressurized discharge and will cause many issues if not plumbed correctly. Sanitary drains are based on a gravity drain not forced pressure.

Apparently some idiot installed your sump with the wrong pump.
That might be a local thing: up here 1 1/2 is common (for sump not ejector), but you are right about the pressurized discharge mingling with gravity plumbing.
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Old 03-09-2017, 06:51 PM   #25
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Re: Sump pump is pushing water up into the bath tub. Eh?


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That might be a local thing: up here 1 1/2 is common (for sump not ejector), but you are right about the pressurized discharge mingling with gravity plumbing.
I am in Apex, NC. New construction Meritage Builder. The issues (alarm) come up only with frequent use of the basement bathroom.

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Old 03-09-2017, 07:11 PM   #26
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Re: Sump pump is pushing water up into the bath tub. Eh?


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Originally Posted by radpp16 View Post
I am in Apex, NC. New construction Meritage Builder. The issues (alarm) come up only with frequent use of the basement bathroom.

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Something sounds very wrong unless your plumbing code is very different than what I'm familiar with. Others may know more. Is there a New Home Warrantee program in your jurisdiction? You should follow up with your builder and/or building inspector, but you should do your homework first and get your head around - as far as you can - about what is flowing where, what is connected to what, etc.
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Old 03-09-2017, 07:42 PM   #27
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Re: Sump pump is pushing water up into the bath tub. Eh?


Washing machine water should not be given to the sump pump.
o The washing machine water can corrode and shorten the life of the sump pump.
o The sump pump might not be able to keep up with getting rid of both the washing machine water and ground water during rainy season and you basement could flood unexpectedly.
o Unpleasant odors could develop in the sump pump drainage system and be noticeable in the basement.

The sump puimp outlet can go either onto the ground surface or into a drain field (leach field) or dry well specifically constructed for this water. In both cases the water should have gotten a good distance from the house before it soaks into the ground.

You should not splice onto a washing machine drain hose. This could overload ad shorten the life of washing machine components notably the pump that ejects the water during the spin cycle. If the washing machine has to stay in the basement and its drain hose does not reach that high then you should install a laundry tub of at least 20 gallons draining into an ejector pump assembly. The latter pumps the washing machine water up to the house main drain line to the sewer. The laundry tub is needed to hold the water until the ejector pump can get rid of all of it. For this laundry tub, faucets are optional.
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Last edited by AllanJ; 03-09-2017 at 07:54 PM.
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Old 03-09-2017, 10:29 PM   #28
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Re: Sump pump is pushing water up into the bath tub. Eh?


Sounds to me like you have two pumps. One is a sump pumps that pumps ground away. The other a sewage ejector pump that pumps washer and sink drain to the sewer system where it is supposed to.
Being as you say this is new construction I would call the builder back to investigate and remedy.
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Old 03-10-2017, 05:16 PM   #29
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Re: Sump pump is pushing water up into the bath tub. Eh?


Your basement bathrooms need to be plumbed to a grinder pump if you been having to get that pit cleaned constantly that is telling me some one installed a cheap water storm pump instead of the more expensive grinder pump.
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Old 03-12-2017, 07:59 PM   #30
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Re: Sump pump is pushing water up into the bath tub. Eh?


Quote:
Originally Posted by radpp16 View Post
I am in Apex, NC. New construction Meritage Builder. The issues (alarm) come up only with frequent use of the basement bathroom.
Sounds like your sewage ejector pump isn't cycling properly. This is not a sump pump although they look very similar. Sump pumps take ground water and dump back onto your yard or into a storm sewer. Ejector pumps, pump sewage into the municipal sewage system. Ejector pits should have a lid that is sealed tight and a vent line (ie two dwv lines into the pit) to exhaust the gases through the roof and allow air to enter the sump as effluent is pumped out.

If its backing up into the tub that means the ejector sump pit is full and its overflowing into the closest fixture. If you have a toilet down there it probably isn't very pleasant effluent... gross...

I had a similar problem in that my ejector pump switch wasn't working properly. I changed it to an electronic switch and since then its worked perfectly 8 years ago now.....

The secondary benefit is the switch has some diagnostic capabilities as well to keep track of the pumps health (motor current load, ...)

Not the most fun changing a switch on an ejector pump but better than cleaning up a basement 2" deep in sewage.... before opening the pit plug the ejector pump motor into the wall bypassing the float switch piggyback plug. Let it runs for 20-30 seconds until you hear the pump change tone suggesting its drained the whole pit. Then unplug the pump and open the lid.

http://washerwatcher.com/Ejector_Controller.htm
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