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One of the most common questions that people who are curious about bidets have is “where does bidet water come from?“
There’s a common misconception that bidet water is sourced from your toilet bowl or that it requires a separate water source. Let’s get to the truth of the matter.
Where Does Bidet Water Come From?
Bidet water comes from your regular water supply.
The water that comes from your bidet comes from the exact same source as the water you drink from your kitchen tap, brush your teeth with and shower in.
Do Bidets Use Toilet Water?
There’s a common misconception that bidets use “toilet water” – aka the water that’s in your toilet bowl – and somehow suck it up into the bidet hose and spray your nether regions.
That’s not accurate – bidets don’t use “toilet water.” Toilet water (a type of “wastewater“) is flushed down the drain, flows into a sanitary sewer system, and then to a wastewater treatment facility.
Bidets use water from your home’s regular water supply.

Do Bidets Use Grey Water?
“Greywater” is wastewater that has not been in contact with fecal matter. In other words, greywater is the water that comes from your dishwasher, shower or washing machine, etc.
For environmental reasons, greywater is used in various regions around the world as toilet water – i.e. the water that you flush once you’ve used the toilet.
Any water that comes in direct contact with human skin must be “potable” water and cannot be “greywater.”
Bidet water comes in direct contact with your skin and thus, must be run off the main water source – bidets cannot be hooked up to a greywater source.
Is Water From a Bidet Clean?
Yes, bidet water is clean. Because the water in your bidet comes from your regular water supply, if your regular water supply is clean, then your bidet water is clean.
Do you shower? Drink water from your kitchen tap? Brush your teeth using the water that flows from your bathroom faucet?
If the answer is yes to any of those questions, then think about this – if the water from your faucet is clean enough to drink, brush your teeth with and bathe in, then it’s definitely pure enough to clean your tushy.