Waterpark Simulator Chlorine and Pool Cleaning Guide

Pools and water slides in a Waterpark Simulator park with guests in the water — Image: Official screenshot, Steam

Clean pools with the sponge-mop or the power washer. Draining and refilling clears contaminated water entirely. Chlorine only comes into play once water has actually gone dirty — a well-staffed park may never present you with a pool that needs it.

The three ways to clean water

Method	Best for	Downside
Sponge-mop	General pool and surface cleaning	Slow on large messes
Power washer	Grime and stains, faster per action	Needs unlocking
Drain and refill	Clearing contaminated water outright	Pool is out of action while it refills

Draining is the blunt option. It clears everything at once, including what guests have left in the water, but the pool stops earning while it refills and guests wander off to something else.

Why you may never see chlorine

Water quality degrades from use and from guests behaving badly in it. A park with enough cleaners keeps that under control automatically, which is why some players reach late game without ever handling chlorine at all.

Players chasing a chlorine-related objective have resorted to firing cleaners so the water gets dirty enough to require treatment. That tells you the trigger is the water's actual state rather than a timer or a quest step.

One thing that used to make this harder has been fixed: chlorine and shop supplies no longer despawn when you quit and reload the game, so stock you bought stays where you left it.

Water is part of your park rating

Everything you do affects the park's overall rating — cleanliness, how fun the slides are, and the quality of your food and amenities. Pool water sits squarely in the cleanliness half of that.

Happier guests stay longer, spend more, and come back. That makes cleaning one of the few chores in this game with a direct revenue payoff rather than just being maintenance you resent.

Check pool water as part of your rating checks, not just trash on the ground.
More guests means more contamination, so upkeep scales with success.
Station cleaners near your busiest pools rather than spreading them evenly.
Graffiti cleanup earns research points as well as protecting the rating — it is the best-value chore in the game.

Guests are the source of the problem

The game is explicit that you will be scooping mess out of pools, and guest behaviour is designed to generate it. Some guests have bad traits and will actively make things worse.

Security staff, added in the 1.0 release, eject unruly guests, which reduces the mess at its source rather than cleaning up after it. If a specific pool keeps going bad, more security nearby is a more durable fix than another cleaner.

There is also a mechanical answer for guests who are causing trouble in the water: the water gun. It is one of the most useful tools in the game, and the standard early recommendation is to unlock it as soon as you can.

One kind of guest cannot be cleaned into behaving. Visitors with rubbish visibly floating around them are a trait, not a state: the developer's description, when a player asked why the water gun did nothing to them, was "visitors that are bound to create trash everywhere", and the 28 August update added an in-game pop-up explaining these trashers. The water gun clears smelly guests, not this. Players' answer is blunter — one reported on 8 September that hitting them with the sledgehammer makes the trash vanish — and the park-cleanliness warning in the corner will keep firing until they leave or you deal with them.

Automating the chore

On PC there are mods that take this work off you entirely. The popular ones auto clean and repair everything in the park, or instantly complete clean, repair, destroy and build actions.

Those are among the most-downloaded uploads on Nexus Mods, which tells you something about how the community feels about pool maintenance at scale. They are PC-only — console players do this by hand.