787 Toilet Flush Question

Old Jun 30, 2022, 2:48 pm
  #1  
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787 Toilet Flush Question

My eight year old daughter was faffing around in the 787 toilets in F on a BA flight and having already finished got spooked when the toilets then appeared to flush themselves again a few minutes later without button being pressed again. I noticed the same thing again later - the toilet seemingly flushing itself not upon request a few minutes after being used.

She today asked me why this happens, I said I didn’t know and so with all the wisdom of an 8 year old said “Why don’t you ask on Flyer Talk daddy?” (She’s wise and possibly spends too long listening to me).

So - was this one 787 bathroom having it’s own issues or is it a normal thing on them I’ve just not noticed before and if so, why and is there any way to stop it?

Not exactly a matter of the utmost importance but my daughter is keen to have the 787 auto flushing toilet mystery solved.
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Old Jun 30, 2022, 2:54 pm
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The answer is actually on FT already!

To quote from the 787 seating guide thread:
https://www.flyertalk.com/forum/british-airways-executive-club/1645350-seating-guide-boeing-787-dreamliner.html

(In the Wiki)

Boeing 787-9 seating comments:....The flush also uses a sensor rather than a button. This has potential to cause confusion at an inopportune moment
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Old Jun 30, 2022, 2:55 pm
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All I can think of is they have a sensor on them as well as a traditional button, so you just have to wave your hand over the button and they flush.

I don't suppose you covered the button when it happened did you?
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Old Jun 30, 2022, 2:56 pm
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The toilet flush switch is a combination infrared control (touchless) and manual control (touch). Initiate the flush cycle by hand motion in front of the switch or pressing the switch. Once the flush cycle begins, there is an automatic 15 second delay for a system reset before the next flush cycle can be initiated. This delay conserves water by preventing consecutive flushes if the flush switch is repeatedly activated by either method.
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Last edited by Can I help you; Jun 30, 2022 at 3:00 pm Reason: Correct answer
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Old Jun 30, 2022, 3:10 pm
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Ah missed it in the seating guide but thank you very much for the answers and the details
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Old Jun 30, 2022, 3:13 pm
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Originally Posted by guytp
Ah missed it in the seating guide but thank you very much for the answers and the details
Apologies - I meant to add a smiley in my original post, after all why would anyone look there!!?

I only found it by searching keywords as I knew they had sensors. Didn't mean to imply you should have known it was there!
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Old Jun 30, 2022, 4:05 pm
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Nice to see a thread not about cancelled flights
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Old Jun 30, 2022, 4:39 pm
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Originally Posted by mikeyfly
Nice to see a thread not about cancelled flights
Cancelled toilets?
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Old Jul 1, 2022, 3:07 am
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This has caused quite the conversation this morning over breakfast. Apparently the 787 is out from fleet decisions going forward.


Originally Posted by mikeyfly
Nice to see a thread not about cancelled flights
I can probably add some complaints from my daughter about recent CW flight from the eyes of an 8 year old to keep it on recent theme. Suffice to say even I’m the eyes of a younger frequent flyer current operational difficulties are noticed and baffling! To prevent her ending up on DYKWIA I’ll stick to bathroom questions for now
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Old Jul 1, 2022, 3:16 am
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I think there are few things more annoying than the automatic flush with a sensor. Move just a little bit and off it goes!
They are to be found in bathrooms in cinemas, department stores, theatres not just aircraft and it always strikes me that the designers forgot that at least 50% of the population always sit down. I’m pretty sure that’s a higher percentage in the air as well as it’s less accident prone or so gentlemen of my acquaintance tell me.
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Old Jul 1, 2022, 3:27 am
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Originally Posted by Ladyfliestheredwhiteandblues
I think there are few things more annoying than the automatic flush with a sensor. Move just a little bit and off it goes!
They are to be found in bathrooms in cinemas, department stores, theatres not just aircraft and it always strikes me that the designers forgot that at least 50% of the population always sit down. I’m pretty sure that’s a higher percentage in the air as well as it’s less accident prone or so gentlemen of my acquaintance tell me.
As a gentleman I have to say that Lufthansa urinal onboard is about as unappealing as can be during flight.
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Old Jul 1, 2022, 3:35 am
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Originally Posted by Ladyfliestheredwhiteandblues
I think there are few things more annoying than the automatic flush with a sensor. Move just a little bit and off it goes!
They are to be found in bathrooms in cinemas, department stores, theatres not just aircraft and it always strikes me that the designers forgot that at least 50% of the population always sit down. I’m pretty sure that’s a higher percentage in the air as well as it’s less accident prone or so gentlemen of my acquaintance tell me.
I hate it when the toilet flushes as you sit down, I'm not a fan of bidets!
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Old Jul 1, 2022, 2:21 pm
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Originally Posted by BR787
Cancelled toilets?
Cancelled flushes?
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Old Jul 1, 2022, 2:50 pm
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Oh for Toto toilets onboard
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Old Jul 1, 2022, 4:48 pm
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JAL F has two toilets, one is the grandiose passenger toilet (and the other is a much more standard Boeing lav which passengers can use but is probably mainly for the forward crew). The grandiose one has a washlet (unsure if it's a Toto).
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