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Coin cell safety improvement a world first in Australia
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Ed.Kloonk:
I'm having a late breakfast and wondering if it was necessary to draw in the 'item'.

tooki:

--- Quote from: Zero999 on January 07, 2021, 06:47:25 pm ---
--- Quote ---
--- Quote from: Zero999 on December 29, 2020, 05:34:31 pm ---
--- Quote ---Nope, I'm actually on the bottom floor.
--- End quote ---
I bet there's a fairly long drop before the sewer, otherwise it wouldn't flush so well. When the toilet flushes, the inertia and siphon effect of the water passing down the long pipe, helps suck the rest of the contents of the toilet bowl out. If you've got a short pipe going into the sewer, it won't flush so well.

--- End quote ---
I don't believe the physics of siphons work that way. Inertia has nothing to do with it. But moreover, my toilet (like all of them I have ever seen here in Switzerland) is a non-siphon toilet. In my case (like in essentially all modern toilets here) it's a washdown toilet.

Assuming your country flag is correct, you're in the UK, where washdown toilets are also the norm. True siphon toilets (the dominant type in my home country of USA) are entirely different beasts.

--- End quote ---
Yes, I'm in the UK and it is a washdown toilet. I believe the momentum of the water going down the drain is helping to flush the upstairs toilet, better than the downstairs. They're both exactly the same brand, model and age, so I can't think of any other reason why this is the case. The only other explanation is the downstairs one has some sort of fault, but it's not like it doesn't flush at all, just not so well.


--- End quote ---
I’d be looking into the tank. It’s probably not opening its valve as fully, or it’s not filling to the same amount.

That graphic, while amusing, is kinda wrong. The water level in the drain pipe cannot be higher than in the bowl. The little dam in the back is what defines the water level. The key thing in a washdown toilet is that the pipe does NOT fill with water. It flows “open” like in a sewer. That image was clearly originally of one with a floor drain, not a wall drain. I’ve added a corrected version using my mad art skillz: fat yellow for the floor drain flow, red for the correct wall drain position, thin yellow for wall drain flow. I’ve also attached an image of a modern designer bowl whose geometry is somewhat closer to your image’s. :p
Zero999:

--- Quote from: tooki on January 08, 2021, 04:54:52 pm ---
--- Quote from: Zero999 on January 07, 2021, 06:47:25 pm ---
--- Quote ---
--- Quote from: Zero999 on December 29, 2020, 05:34:31 pm ---
--- Quote ---Nope, I'm actually on the bottom floor.
--- End quote ---
I bet there's a fairly long drop before the sewer, otherwise it wouldn't flush so well. When the toilet flushes, the inertia and siphon effect of the water passing down the long pipe, helps suck the rest of the contents of the toilet bowl out. If you've got a short pipe going into the sewer, it won't flush so well.

--- End quote ---
I don't believe the physics of siphons work that way. Inertia has nothing to do with it. But moreover, my toilet (like all of them I have ever seen here in Switzerland) is a non-siphon toilet. In my case (like in essentially all modern toilets here) it's a washdown toilet.

Assuming your country flag is correct, you're in the UK, where washdown toilets are also the norm. True siphon toilets (the dominant type in my home country of USA) are entirely different beasts.

--- End quote ---
Yes, I'm in the UK and it is a washdown toilet. I believe the momentum of the water going down the drain is helping to flush the upstairs toilet, better than the downstairs. They're both exactly the same brand, model and age, so I can't think of any other reason why this is the case. The only other explanation is the downstairs one has some sort of fault, but it's not like it doesn't flush at all, just not so well.


--- End quote ---
That graphic, while amusing, is kinda wrong. The water level in the drain pipe cannot be higher than in the bowl.
--- End quote ---
I accept that my drawing is wrong, but there was reasoning behind it. I know that the water level in the drain will not sit higher than the bowl in the steady state, but after it's flushed, I thought the inertia due to the water flowing down the drain, would suck on the water in the bowl, momentarily reducing the surface level. I have noticed, that after I flush, the water level in the bowl does drop slightly, before going back up again.


--- Quote ---The little dam in the back is what defines the water level. The key thing in a washdown toilet is that the pipe does NOT fill with water. It flows “open” like in a sewer. That image was clearly originally of one with a floor drain, not a wall drain. I’ve added a corrected version using my mad art skillz: fat yellow for the floor drain flow, red for the correct wall drain position, thin yellow for wall drain flow. I’ve also attached an image of a modern designer bowl whose geometry is somewhat closer to your image’s. :p

--- End quote ---
What stops the pipe behind the toilet from filling with water?


--- Quote ---I’d be looking into the tank. It’s probably not opening its valve as fully, or it’s not filling to the same amount.
--- End quote ---
I think I might talk to my dad who's a chartered surveyor. If he doesn't know what's wrong, he'll be able to recommend a good plumber. It'll have to wait until the COVID situation improves, as the toilet still works and even if it stops, I've still got the upstairs one.
tooki:

--- Quote from: Zero999 on January 08, 2021, 06:29:46 pm ---
--- Quote from: tooki on January 08, 2021, 04:54:52 pm ---
--- Quote from: Zero999 on January 07, 2021, 06:47:25 pm ---
--- Quote ---
--- Quote from: Zero999 on December 29, 2020, 05:34:31 pm ---
--- Quote ---Nope, I'm actually on the bottom floor.
--- End quote ---
I bet there's a fairly long drop before the sewer, otherwise it wouldn't flush so well. When the toilet flushes, the inertia and siphon effect of the water passing down the long pipe, helps suck the rest of the contents of the toilet bowl out. If you've got a short pipe going into the sewer, it won't flush so well.

--- End quote ---
I don't believe the physics of siphons work that way. Inertia has nothing to do with it. But moreover, my toilet (like all of them I have ever seen here in Switzerland) is a non-siphon toilet. In my case (like in essentially all modern toilets here) it's a washdown toilet.

Assuming your country flag is correct, you're in the UK, where washdown toilets are also the norm. True siphon toilets (the dominant type in my home country of USA) are entirely different beasts.

--- End quote ---
Yes, I'm in the UK and it is a washdown toilet. I believe the momentum of the water going down the drain is helping to flush the upstairs toilet, better than the downstairs. They're both exactly the same brand, model and age, so I can't think of any other reason why this is the case. The only other explanation is the downstairs one has some sort of fault, but it's not like it doesn't flush at all, just not so well.


--- End quote ---
That graphic, while amusing, is kinda wrong. The water level in the drain pipe cannot be higher than in the bowl.
--- End quote ---
I accept that my drawing is wrong, but there was reasoning behind it. I know that the water level in the drain will not sit higher than the bowl in the steady state, but after it's flushed, I thought the inertia due to the water flowing down the drain, would suck on the water in the bowl, momentarily reducing the surface level. I have noticed, that after I flush, the water level in the bowl does drop slightly, before going back up again.


--- Quote ---The little dam in the back is what defines the water level. The key thing in a washdown toilet is that the pipe does NOT fill with water. It flows “open” like in a sewer. That image was clearly originally of one with a floor drain, not a wall drain. I’ve added a corrected version using my mad art skillz: fat yellow for the floor drain flow, red for the correct wall drain position, thin yellow for wall drain flow. I’ve also attached an image of a modern designer bowl whose geometry is somewhat closer to your image’s. :p

--- End quote ---
What stops the pipe behind the toilet from filling with water?


--- End quote ---
Because the drain pipes on washdown toilets are huge. They’re not the deliberately thin drains of siphon toilets. This is all explained in the wiki article by the way...

As such, there is no “suction” on the water in the bowl. It’s at ambient air pressure.

Go to your kitchen sink with a skillet. Put some peas in it. Turn on the tap at full blast. Hold the pan at a 45 degree angle and hold it under the tap. See how the water flushes the peas out of the skillet? You’ve just demonstrated how a washdown toilet works. No suction, vacuum, or siphon involved.
nuclearcat:
Back to the beginning. Has anyone read https://www.legislation.gov.au/Details/F2020L01656 at all?
(10 Fasteners for doors or covers to compartments holding button / coin batteries must be captive etc.)
As i understand, it's enough to stop making shitty flimsy battery covers that fall apart from touch.

--- Quote ---The consumer goods must be designed to ensure the screws or similar fasteners used to secure the door or cover providing access to the compartment are captive and remain with the door or cover.
--- End quote ---


--- Quote from: ratatax on December 22, 2020, 07:09:31 pm ---"one child a month"

Yeah so who cares. Natural selection. If we needed to prevent any misuse of any product everything would be forbidden, even spoons.

--- End quote ---
Well, actually things are serious:

--- Quote ---Every day in Australia there is at least one child who needs to be hospitalised because they have swallowed a button battery.
--- End quote ---
In most cases such injury ends up in lifelong disabilities.

It seems to me that this is a bit extreme regulation.
Manufacturers should mark devices child-safe or not child-safe, maybe making separate version (like tv remotes), that are slightly more expensive due manufacturing efforts.
Families with small children should buy child-safe devices and it is THEIR responsibility, to keep non-child-safe devices away. And when such marking "child safe" exist - it will be really trivial. If it is electronic device and you don't see marking "child safe" - keep it damn locked, like a loaded gun.
Because some specialized devices have sealing gasket designed for specific way they are opened, and redesigning them to be children-safe wont be trivial, most likely device will disappear from australian market. Like this: https://help.thermoworks.com/wp-content/uploads/2018/02/Classic-Thermapen-Battery-Cover-Open.jpg
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