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Default Water gurgle in toilet when washing machine drains

Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ

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Default Water gurgle in toilet when washing machine drains


wrote:
Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ


Hi, Russ.

Improper/inadequate venting.

HTH,
J

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Default Water gurgle in toilet when washing machine drains

wrote:

Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ


While venting may be a part of the problem, I don't think
it answers everything.

It sounds more like there is a restriction (blockage) in
the line serving both toilet and washer. As the water backs
up, it forces air and water up to the toilet connection.
Then, as it does drain out, siphoning occurs from the
toilet bowl.

For a quick test, pull the toilet up and watch what happens
in the sewer line below as the washer drains.

Or...do the "bucket test" on the toilet. Line up
a dozen buckets of water. Rapidly dump them into the
toilet. If there is no blockage, the water should go down
as fast as you can pour.

If the sewer is buried under a slab, it is not unusual
for tree roots to penetrate far under the slab where
they can create a blockage affecting only part of the house
(just one theory).

Well, those are some tests I would do before making
a project out of it.

Jim
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Default Water gurgle in toilet when washing machine drains

Thanks for the replies.

Speedy Jim, can I ask a couple of follow up questions. And I apologize
in advance if they are "dense"

There probably isn't a "typical" connection but what I am envisioning
is something like one of these 2 scenarios, since it seems pretty
obvious that the washer and toilet share the same line:


Washer Toilet
X X X X
X X X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (Shared line)
XX
XX
XX
XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (main drain line)



Washer Toilet
X X X X
X X X X
X X X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (shared line)
XX
XX
XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (main drain line)


1) One thought I had was that the discharge from the washer might be
fully occupying the shared line between the washer and the main line,
giving the toilet discharge nowhere to go. Is this a bad assumption?

2) Are you thinking that there may be an obstruction in the what I am
showing as the vertical connection between the shared line and the main
line? Not big enough to prevent the toilet from flushing "on it's own"
but enough to prevent the washer from freely draining and looking for
another place to go?

3) If the answer to 2 is yes, would I not get backing up in the toilet
(non-flushing). I am not getting bubbling in the toilet, which I
thought I might see if there was air coming back (only a gurgling noise
with gradually lowering water level in the bowl). The toilet bowl
water does not rise (non-flushing), which I guess I would assume would
accompany drain water backing up. Or is the sloshing indicitive of
both water and air being forced into the toilet.

I appreciate your patience with these questions. Please correct me
where I am off track. I hope these "diagrams" come through ok.





Speedy Jim wrote:
wrote:

Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ


While venting may be a part of the problem, I don't think
it answers everything.

It sounds more like there is a restriction (blockage) in
the line serving both toilet and washer. As the water backs
up, it forces air and water up to the toilet connection.
Then, as it does drain out, siphoning occurs from the
toilet bowl.

For a quick test, pull the toilet up and watch what happens
in the sewer line below as the washer drains.

Or...do the "bucket test" on the toilet. Line up
a dozen buckets of water. Rapidly dump them into the
toilet. If there is no blockage, the water should go down
as fast as you can pour.

If the sewer is buried under a slab, it is not unusual
for tree roots to penetrate far under the slab where
they can create a blockage affecting only part of the house
(just one theory).

Well, those are some tests I would do before making
a project out of it.

Jim


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Default Water gurgle in toilet when washing machine drains

wrote:

Thanks for the replies.

Speedy Jim, can I ask a couple of follow up questions. And I apologize
in advance if they are "dense"

There probably isn't a "typical" connection but what I am envisioning
is something like one of these 2 scenarios, since it seems pretty
obvious that the washer and toilet share the same line:


Washer Toilet
X X X X
X X X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (Shared line)
XX
XX
XX
XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (main drain line)



Washer Toilet
X X X X
X X X X
X X X X
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (shared line)
XX
XX
XX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (main drain line)


1) One thought I had was that the discharge from the washer might be
fully occupying the shared line between the washer and the main line,
giving the toilet discharge nowhere to go. Is this a bad assumption?

2) Are you thinking that there may be an obstruction in the what I am
showing as the vertical connection between the shared line and the main
line? Not big enough to prevent the toilet from flushing "on it's own"
but enough to prevent the washer from freely draining and looking for
another place to go?

3) If the answer to 2 is yes, would I not get backing up in the toilet
(non-flushing). I am not getting bubbling in the toilet, which I
thought I might see if there was air coming back (only a gurgling noise
with gradually lowering water level in the bowl). The toilet bowl
water does not rise (non-flushing), which I guess I would assume would
accompany drain water backing up. Or is the sloshing indicitive of
both water and air being forced into the toilet.

I appreciate your patience with these questions. Please correct me
where I am off track. I hope these "diagrams" come through ok.



Diagrams Ok. g

Could be like #2, or even the reverse of that.
The sloshing indicates air pressure in the line
because the washer water is filling the line.

As the other gentleman suggested, a vent would relieve that
but I'm suspicious that something else is going on.
Really hard to guess from afar without seeing the layout though.

Particularly troublesome is the fact that the toilet won't
drain if the washer is draining. A vent has no bearing on that.

Play detective and do whatever snooping and testing it takes.
Jim






Speedy Jim wrote:

wrote:


Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ


While venting may be a part of the problem, I don't think
it answers everything.

It sounds more like there is a restriction (blockage) in
the line serving both toilet and washer. As the water backs
up, it forces air and water up to the toilet connection.
Then, as it does drain out, siphoning occurs from the
toilet bowl.

For a quick test, pull the toilet up and watch what happens
in the sewer line below as the washer drains.

Or...do the "bucket test" on the toilet. Line up
a dozen buckets of water. Rapidly dump them into the
toilet. If there is no blockage, the water should go down
as fast as you can pour.

If the sewer is buried under a slab, it is not unusual
for tree roots to penetrate far under the slab where
they can create a blockage affecting only part of the house
(just one theory).

Well, those are some tests I would do before making
a project out of it.

Jim





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Default Water gurgle in toilet when washing machine drains

On 3 Oct 2006 06:55:12 -0700, wrote:

Hi,

Sure would appreciate advice on this plumbing issue.

In my downstairs utility room, we have a washing machine with a toilet
(and sink) a few feet away.

When the washing machine drains, the water in the toilet bowl will
gurgle (you can see the water move and slosh around in the bowl) and
usually most of the water will drain out of the toilet bowl by the time
the washing machine finishes draining.

If you try make the mistake of flushing the toilet while the washing
machine drains, the water in the bowl rises to the top and comes close
to overflowing.

Additional hints:

This washing machine-toilet thing has been going on for quite a while.


We have never had any back up in the washing machine drain.

We recently had our drain pipe (from kitchen to the main drain)
power-snaked out because draining water from the kitchen was backing up
into the kitchen sink. The kitchen sink problem was a new one. This
has corrected this problem. If I understood the plumber right, the
power-snaking went beyond the length of this particular drain line and
into the main house drain pipe. (The kitchen is "ahead" of the utility
room about probably 30-40 feet away).

The upstairs toilets don't seem to be affected by the washing machine
draining.

Your advice on how to go about fixing this is really appreciated!

Thanks
Russ



Wow the subject alone was enough info. I would see about having a
'real' plumber check your system, you might have a venting problem.
The plumber can see if you have an underdesigned system, or maybe
something fell into your vent stack.

Good luck, fill us in on what you did later,

tom @
www.NoCostAds.com

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