The kids have an inflatable paddling pool (about 12' by 6') which stays out there for the school, holidays at least. They don't use it every day, but most days...
The problem is the green muck that appears on teh bottom of the pool. It happens very quickly in this weather. Clearly we can empty and clean but it's a nuisance, and a waste of water.
Is there anything non-toxic we can use to prevent this? I know there are swimming pool chemicals that will do the job, but this is just a plastic inflatable (and not that big).