text: could algae be produced from a child peeing in the pool? i let some non potty trained children swim in my pool the other day and i noticed that green algae was starting to grow on my liner. they had on pamper swimmers but i don't believe they do much! i added extra chlorine and a gallon of algaecide but am not seeing any difference.  any ideas?? the algae in not from the pee.  it's a growth from incorrect chemicals.