E.T.
As a former lifeguard, we had to shut the pool down if there were visible bodily fluids or solids (blood, vomit, feces). We used to draw straws to see who got the job of scooping it out. Then we had to "super chlorinate" the water and it had to sit for a specific amount of time. I don't know if a saline pool is different, but personally I wouldn't get into the pool. I've heard too many statistics about illnesses traced back to pools and waterparks.