Hi parents, how much water is recommended to give to LO once he started to take solids? Thank you!

I add a dash of water to all his purée whether it is store bought or home made. If Cereal, I also add abt 5-10ml more water. I also put water in a sippy cup for baby to have concept of drinking water during a meal time. If I see his poo is on the harder side I will also add abt 5-10ml more of water to his fm