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# How much pee is in an average pool?

Your average public pool, an average summer day. What percentage of the volume in that pool is piss? Any educated guesses or useful resources?

What percent pee would a pool have to be before it began to change color?

### 10 Answers

- ideaquestLv 71 decade agoFavorite Answer
The dimension of an Olympic pool is 25m x 50m x 2m deep.

Volume = 25 x 50 x 2 = 2,500 cu meters

Assume 500 people use the pool and 50% of the people pee, 1liter of urine each.

500 x 50% x 1 = 250 liters

1 liter = 1/1000 cu. meters

250 liters = 250/1000 cu. meters

Therefore the percentage of the urine in the pool is approximately,

(250/1000)/2500 x 100% = 0.01%

Based on the assumption that 500 people used the pool with 50% contributing a 1 liter of urine each, the percentage of urine is just 0.01%.

Additionally, most swimming pool uses chlorine to treat the water, so it should be pretty safe to use.

My guess on the change of color would be around 10%.

- Anonymous1 decade ago
OK, I'll take a shot at answering this.

Lets assume the pool is 10,000 gallons.

Lets assume that each kid pisses roughly 4 ounces of liquid urine- I've measured mine, as an adult at 45 its 9 ounces so 4 ounces for a kid should be pretty close.

(Hey, when you're passing kidney stones it gives you something to do ok?)

So, the math works something like this: 10,000 gallons times 128 ounces= 1,280,000 ounces of chlorinated water. We can guess,,,,,60 kids for the average pool might be close, and lets say 6% of those kids pee in the pool, so lets call it 24 ounces of pee total (6 kids times 4 ounces) which gives us a ratio of roughly 1 part piss to 10,000 units of water. This is close ok?

Now, how much piss would it take before it would acquire a yellow color? Two step quesiton for this: A)OK, urine is acidic, around -5.5 to -6.0 if I remembe right, and Bleach is around 8 so chemically they're pretty close to cancelling each other for a Ph of 7.0 which is neutral.

To change the color of the water- assuming we had a perfect 100% white background with zero refraction- I'd guess around 1%, or roughly 100 gallons of nice bright Vitamin colored urine. If no vitamins then call it 200 gallons

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- 1 decade ago
Icky. At least pee is sterile. Gross, yes. Bacteria-laden, no. Maybe if you took a survey of people, get an idea of the percentage of folks who will pee in a pool, multiply that by the a typical bladder volume, divide that by the volume of your pool, and you should have your percentage. I, for one, do not pee in pools, so there's one statistic for you.

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- Anonymous1 decade ago
Here's how you can tell if there is a lot of urine in your pool water. If the clorine in the water is perfectly balanced it cannot be smelled or tasted; it is undetectable. When urine is present the clorine reacts with the urine and you get a strong 'clorine' smell. So the stronger the clorine smell; the more urine is present in the water.

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- 1 decade ago
If we came to know about it then i am sure that people will stop going to the swimming pool , i think that is why they don't test the swimming pool water on an regular basis . I think it is best unanswered and such revelations can be injurious to public phycology

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- 1 decade ago
"Welcome to our ool. Notice there's no P in it. Let's keep it that way."

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Per day , so how much Pee?