It depends on the code requirement (if your jurisdiction has enacted a code) for where you live. Where I live the minimum-bury code requirement is one foot. (UPC). I am a little puzzled by your question, though. Minimum-bury requirements are for OUTSIDE the structure, and you say this is a bathroom addition. Crawl-space or slab.....no bury requirement at all.
i think my bathroom sink can hold about 3 cups
Going to the bathroom is a necessary body function. In that respect, going to the bathroom is healthy. It can become unhealthy if you do not use healthy practices, like washing your hands after eliminating.
To say 'He is going to the bathroom' you would say 'Va al baño.'
would going to the bathroom often be a sign of colon cancer
Did you go to the bathroom on his desk, or your desk in your pants or on his face?
Only if you are going to the bathroom a lot due to having severe dysentery or a deadly form of food poisoning.
eating and going to the bathroom
going to the bathroom
try going to the bathroom
they went to the bathroom in a stream that they did not use for drinking water.
It is not possible for someone to go indefinitely without using the bathroom. The body needs to eliminate waste regularly to maintain proper functioning. If someone tries to hold their urine or stool for a prolonged period, it can lead to discomfort, health issues, and potential damage to the bladder or bowel.
No you may not use the bathroom. If you have to use the bathroom you raise your hand and wait your turn! And if you ask again your going to get detention!