Water levels in the toilet

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i'm literally googling the formulas bc i don't remember them

forensic plumber (harbl), Thursday, 24 May 2018 11:42 (five years ago) link

from my poop physics class in college

forensic plumber (harbl), Thursday, 24 May 2018 11:42 (five years ago) link

mass isn't a factor if i remember Galileo dropping number 2s off the top of the Leaning Tower of Pisa

R.A. Lafferty, lover of the Russian queen (Noodle Vague), Thursday, 24 May 2018 11:45 (five years ago) link

gravity x height of shite = 1/2 x velocity squared

chant down basildon (NickB), Thursday, 24 May 2018 11:47 (five years ago) link

need to model viscosity in there somewhere

thomasintrouble, Thursday, 24 May 2018 11:47 (five years ago) link

and exit velocity

thomasintrouble, Thursday, 24 May 2018 11:48 (five years ago) link

if the water's high enough tho then potential the execreta just slides in without any drop to speak of

R.A. Lafferty, lover of the Russian queen (Noodle Vague), Thursday, 24 May 2018 11:48 (five years ago) link

v2=v1+2g∆y

∆y is the difference between water level and placement of butthole

forensic plumber (harbl), Thursday, 24 May 2018 11:50 (five years ago) link

we need to know the volume of the poo to determine how much water is displaced

forensic plumber (harbl), Thursday, 24 May 2018 11:55 (five years ago) link

Right: any serious investigator would also have to look into US vs. UK diets and restaurant portion sizes. We may need more water in the bowl to accommodate larger movements.

and she could see an earmuff factory (Ye Mad Puffin), Thursday, 24 May 2018 11:55 (five years ago) link

need to rename this board not enough information

chant down basildon (NickB), Thursday, 24 May 2018 11:58 (five years ago) link

I'm afraid I won't be of any help in answering this one because I only shit in the urinal.

I cop this squat in the name of slack (Old Lunch), Thursday, 24 May 2018 11:59 (five years ago) link

/thread

startled macropod (MatthewK), Thursday, 24 May 2018 12:11 (five years ago) link

Poll?

Poisoned by Johan's pea soup. (Tom D.), Thursday, 24 May 2018 12:34 (five years ago) link

ok i'm an American and i'm totally confused by the original post. The water level is 14 inches below the seat? Either the seat height is *way* higher in the UK or the water level must somehow be only an inch above the floor, in which case I don't know how it would flush unless the bottom of the loo goes below floor level (which is rarely does in the US).

In the US the seat height on older toilets (note: a "toilet" in the US means the loo, not the room it's in) is about 15" off the floor; newer ones are about 17" off the floor which is supposed to be a more comfortable height (although shorter people may disagree). The other thing that's changed on newer toilets is they use much less water - 5 to 6 liters compared to about 20 liters on older fixtures. It's easy to tell if it's a new one because there'll be hardly any water in it, whereas the bowl will be about 2/3rds full on anything made before the '80s. This means the old ones have both a higher water level and a lower seat, making the distance from seat to water level considerably less.

Despite that, a new toilet probably won't splash you any more than an old one, and may even splash less because the pool of water is so shallow. It's similar to how you won't get big waves in a shallow ocean (or something like that, ask a surfer to explain). I've renovated bathrooms professionally and have found the better new toilets (like the one below which I have in my home) flush much more cleanly and splash less than old ones despite the much lower water usage.

Finally, I did a quick online check to see if the same company who made my commode sells the same ones in the UK. Nope, they're totally different, with the biggest difference being they're mostly wall-mounted (rare in the US except expensive ones) rather than sitting directly on the floor. Nonetheless, the dimensions regarding water level and distance to seat are nearly identical to their American counterparts.

https://www.youtube.com/watch?v=X8SdUTjq0KQ

Lee626, Friday, 25 May 2018 09:33 (five years ago) link

https://i.imgur.com/ejw7ksB.jpg

startled macropod (MatthewK), Friday, 25 May 2018 09:39 (five years ago) link

jfc @ that American toilet!

Poisoned by Johan's pea soup. (Tom D.), Friday, 25 May 2018 09:46 (five years ago) link

unless it was clogged, the water level in the American toilet would fall to the same level as the Australian toilet - the height of the bend in the drain pipe determines the water level

Lee626, Friday, 25 May 2018 09:50 (five years ago) link

I approve of this thread

F# A# (∞), Friday, 25 May 2018 12:33 (five years ago) link

Also just saw it now so will poonder this one over

F# A# (∞), Friday, 25 May 2018 12:36 (five years ago) link

Lee is right - it's not culture, it's physics.

and she could see an earmuff factory (Ye Mad Puffin), Friday, 25 May 2018 12:37 (five years ago) link

yeah old American shitters can have this problem. Last year in Portland ME we stayed in an airbnb that had this phenomenally uncomfortable- I’ll just stop here.

El Tomboto, Friday, 25 May 2018 12:42 (five years ago) link


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