Your turtles can mate in the water but will not lay thier eggs. The eggs need oxygen to develop and by instinct, the turtle will not lay in water. She will try to get out of the water to dig a hole to bury the eggs in. If she is in the water when she lays them, you will have to take them out straight away and put them into an incubator. Alternatively if you leave them, they will most likely die. If you are unsure about breeding, contact your vet.
Yes mine did
I have no idea I need that answer too I have 2 turtles that are in water and I want to know that too
What if I don't know when my turtle in the pool laid eggs but I still moved them(eggs) to a container with dirt and some water
They can mate in water but not lay the eggs in water the best thing would be sand