Yellow water coming out of bath tub while my son t...

Yellow water coming out of bath tub while my son took a bath. Not sure if it's urine. Spoke to front desk they are asking for time to fix issue but can't explain why the water is coming out yellow. Toilet doesn't flush. For 135$ a night this has to be one of the worst hotels I have stayed at. Google states it's 3 stars. This hotel is more like a 1 star.