Natural Chemistry’s Pool First Aid gives pool owners a powerful, all-natural treatment to remove dead algae, pollen, antifreeze residue, non-living organic waste, and any oil leaks or hydraulic fluid spills that have contaminated your pool. Using strong natural enzymes, Pool First Aid’s no-scrubbing formula clears pool water of contaminants as well as restoring clogged filter systems back to efficient operation, all without needing harsh chemicals for effectiveness.