How did I screw up my laundry plumbing?

[Northbeard]

Hi people smarter than me. I recently re-did my drain and vent situation (up kitchen, down kitchen and laundry room). Everything was fine with the upstairs kitchen but then I completed the laundry room and ran the washer. I had water coming out the future kitchen sink then the future laundry sink. Why would this happen? Not enough venting, too many turns...should my laundry drain dive into the drain coming down from upstairs? Is this a symptom of running it into a dry p-trap? Please help. I tried to label the pictures to explain the layout and the last is a drawing of the overhead view.

 

[Reach4]

I had water coming out the future kitchen sink then the future laundry sink. Why would this happen

Partially clogged drain under the floor would be my guess. If that is the case, where do you wish you had clean-outs?

It was not clear to me how these pictures relate -- do any show the same pipes?

I am not a plumber.

 

[Sponsor]

 

[Sylvan]

I agree partical blockage down stream

 

[Northbeard]

The block wall is the same wall in the first two pictures...see the overhead view. The line was snaked in the last two months.
We did have a long day of rain leading up to the laundry maiden voyage but I can't worry about the weather when laundry time happens for some in the house.

 

[Sylvan]

Laundry soap like grease adheres to the piping walls restrictinfg flow, sort of like the arties harding

 

[Northbeard]

Right. It's not a blockage downstream. The line was snaked just over a month ago, we have not been using it for laundry and there are only two adults in the house. The only thing on the line in use is a kitchen sink, we don't have a disposal and we are careful not to send food scraps down the line.
So, eliminating the blockage scenario...is there anyone on who can assess my plumbing design for faults or speak to the venting or the theory of a dry p-trap cause?
Thanks.

 

[Plumbs]

Right. It's not a blockage downstream. The line was snaked just over a month ago, we have not been using it for laundry and there are only two adults in the house. The only thing on the line in use is a kitchen sink, we don't have a disposal and we are careful not to send food scraps down the line.
So, eliminating the blockage scenario...is there anyone on who can assess my plumbing design for faults or speak to the venting or the theory of a dry p-trap cause?
Thanks.

Just because you snaked it a month ago doesn't mean there can't be a blockage. I don't see anything in those pictures that would cause that issue besides some kind of obstruction in the line.
It's your drain so you can choose to take advice or not, personally I would start with the most likely problem first.

 

[Northbeard]

I appreciate the acknowledgement of the design, that's what I was looking for...I didn't mean to be snarky. I can snake the line again and will but I just had a bad feeling I messed up.
Do you think it worth hiring a proper cleanout (rooter) or will my manual snake suffice?

 

[wwhitney]

I agree it has to be an obstruction somewhere. And since water first backed up out of the "future kitchen sink" location, the obstruction has to be downstream of it. Maybe the new pipes under the concrete patch got damaged/dislodged when the concrete was patched?

If you have any kind of inspection camera, stick it down the "future kitchen sink" san-tee and see what you can downstream.

Also, in the last picture, why does the concrete patch extend to the left of the "future kitchen sink"? Is there another drain coming in there that isn't shown?

Cheers, Wayne

 

[Reach4]

who can assess my plumbing design for faults or speak to the venting or the theory of a dry p-trap cause?

Could use cleanouts. I would like to be able to stick a medium drain bladder on a hose down the pipes to floor level, or accept a bigger rodding cutter. Hiring a drain cleaning specialist should get a better job than a little hand snake. If these walls have been covered over, have these photos printed out and associated with the wall that the person is dealing with.

who can [...] speak to the venting or the theory of a dry p-trap cause?

Dry p-trap will not contribute toward backups into the kitchen sink when you do laundry.

 

[Plumbs]

I appreciate the acknowledgement of the design, that's what I was looking for...I didn't mean to be snarky. I can snake the line again and will but I just had a bad feeling I messed up.
Do you think it worth hiring a proper cleanout (rooter) or will my manual snake suffice?

I would recommend getting it done with a motorized machine. The hand crank one will not get it nearly as clean.
If you're handy you may be able to snake it yourself by renting one. If you still have access to the pipes it would be a good idea to install cleanouts where they'll be accessible once everything is finished.

 

[Northbeard]

I agree it has to be an obstruction somewhere. And since water first backed up out of the "future kitchen sink" location, the obstruction has to be downstream of it. Maybe the new pipes under the concrete patch got damaged/dislodged when the concrete was patched?

If you have any kind of inspection camera, stick it down the "future kitchen sink" san-tee and see what you can downstream.

Also, in the last picture, why does the concrete patch extend to the left of the "future kitchen sink"? Is there another drain coming in there that isn't shown?

Cheers, Wayne

I had hoped to be able to run my drain tie-in under that block but it turns out they did proper footings so that was not an option hence running it through the closet of the bedroom.