At least three possible answers.
The sink has the plug in the drain or the drain is blocked in some fashion and --
1. The hot tap leaks or has not been turned off correctly,
2. The cold tap leaks or has not been turned off correctly,
3. The temperature difference between the material of which the basin is constructed and the surrounds is such that condensation forms inside the basin,
but then a couple more occurred to me ---
4. Some other person puts the water in it - to annoy you,
5. An animal which expels water puts the water in it (i.e. pees in it)
and,
I'm sure someone else can think of more answers. . . .and you didn't say whether it is clean or contaminated water.
How big is the kitchen sink
To efficiently water your plants using a kitchen sink watering hose, fill a watering can or bucket at the sink and use the hose to water the plants directly at the base. This method allows for precise watering and minimizes water waste.
The amount of water needed to fill a sink depends on the sink's size and depth. On average, a bathroom sink can hold around 1-2 gallons of water, while a kitchen sink can hold around 8-10 gallons.
The first four compartments didn't fill, but it was after that when they did.
To turn on the water in the kitchen sink, locate the faucet handle and turn it clockwise until the water starts flowing.
it would depend on the size of the sink, but most average sinks would be able to hold three gallons of water :)
The hot water is typically located on the left side of a standard kitchen sink.
Low water pressure in your kitchen sink could be caused by a clogged aerator, a faulty faucet, a blockage in the pipes, or a problem with the water supply line specifically to your kitchen sink.
There may be no hot water flowing to the kitchen sink due to a problem with the water heater, a blockage in the pipes, or a malfunctioning faucet.
You can find a filtered water spout for your kitchen sink at home improvement stores, kitchen supply stores, or online retailers. These spouts are designed to provide clean and filtered drinking water directly from your sink.
The easiest way would be to capture the sink water at full flow and fill a 5gallon bucket while timing yourself. When the buckets full then divide the time it took by 5 and you have your GPM.
a flood then the water goes through