foamy water forced out to toilet bowl from drain

[yuen10]

I have this 'mystery' coming from the both toilets of our apartment.
We are living in the 2nd floor of a high rise building. Occasionally, there are gurgling noise
coming from the toilets... where does the air-bubbles come from? Lately, there is foamy
water (smell like wash detergent & soapy bubbles) forced up from the drain into the
toilet bowl (up to half of the toilet bowl, appearing to be waste water from a washing machine). Then it drains away itself. Also, when we flush the toilet, the draining action is delayed MANY seconds after the swirling water filling the bowl, which makes the sight ugly!
The management board needs a professional plumber to confirm the problem originating outside our apartment before agreeing to take action. Can this be done?
The problem is this does NOT happen all the times, just sometimes. Where is the clog?
Any help is appreciated, thank you in advance!

 

[Diehard]

I have this 'mystery' coming from the both toilets of our apartment.
We are living in the 2nd floor of a high rise building. Occasionally, there are gurgling noise
coming from the toilets... where does the air-bubbles come from? Lately, there is foamy
water (smell like wash detergent & soapy bubbles) forced up from the drain into the
toilet bowl (up to half of the toilet bowl, appearing to be waste water from a washing machine). Then it drains away itself. Also, when we flush the toilet, the draining action is delayed MANY seconds after the swirling water filling the bowl, which makes the sight ugly!
The management board needs a professional plumber to confirm the problem originating outside our apartment before agreeing to take action. Can this be done?
The problem is this does NOT happen all the times, just sometimes. Where is the clog?
Any help is appreciated, thank you in advance!

Based on your description, there's a drainage slowdown somewhere downstream of your apartment. Assuming it wasn't always like that (improperly designed from the start) I would think that a plumber would have to start asking the tenants about their experience with possibly similar problems.
The suds can be a problem, especially on the lower levels of a high rise. That is why there are special requirements in the code dealing with that potential problem.
The plumber would have to get a copy of the plumbing drainage plans, together with info from other tenants, and try to determine the problem(s).
As well as making sure the lower drainage piping was installed as shown on the plans.

 

[Geofd]

if you live in a high rise your bld is probably taken care of a management co.....you should contact them before the problem worsens

 

[Geofd]

if you live in a high rise your bld is probably taken care of a management co.....you should contact them before the problem worsens

when we have an issue like this at work we normally snake from the toilet directly above the problem toilet it sound like the drain is partially clogged just below your apt....that's why its bubbling up in an case most drain cleaning/plumbing co would use a snake that would be 100' long