In The Swim Pool Chemical Start Up Kit.png

Chemicals & Water Care

Shop the best chemicals and water care products for above-ground pools — chlorine tablets, pool shock, pH balancers, test kits, algaecides & clarifiers.

Keep your above-ground pool safe, clear and low-maintenance with the right water care routine and trusted chemicals. This guide recommends top products — chlorine tablets & floats, weekly shock (chlorine or non-chlorine), pH increaser/decreaser, stabilizer (CYA), algaecide, clarifiers, phosphate removers, enzyme treatments and easy test kits — plus dosing tips and safety notes so owners can maintain balanced water without guesswork.

clorox - best algaecide for above ground pool

Clorox® Pool&Spa™ Algaecide + Clarifier — Review, How to Use, and Best Practices for Above-Ground Pools

If you want a single product that both kills and prevents algae and also helps clear cloudy water, Clorox® Pool&Spa™ Algaecide + Clarifier is a widely used option worth knowing about. Below we'll cover what it is, how it works, dosing for different situations (including small above-ground pools), safety notes and some pros & cons.

AboveGroundSplash

A box of Clorox Pool&Spa XTRA BLUE 3” Chlorinating Tablets

Clorox Pool&Spa XTRABLUE 3” Chlorine Tablets — Review & How to Use (Best for Above Ground Pools)

If you run an above ground pool, keeping water clear and safe all season is top priority — and a reliable sanitizer is essential. Clorox Pool&Spa XTRA BLUE 3-inch chlorinating tablets are a popular choice for many pool owners because they’re slow-dissolving, stabilized (sunlight-protected), and formulated to kill bacteria and prevent algae.

AboveGroundSplash

In The Swim pool opening kit - chemicals for opening an above ground pool

In The Swim - Pool Opening Chemical Start Up Kit

The In The Swim Basic Opening Chemical Start Up Kit is a convenient, cost-effective way to get your above-ground pool ready for the season. It packages the essential chemicals, supplies clear dosing steps, and is a solid first purchase for budget-minded pool owners who want predictable results without complexity.

AboveGroundSplash

Merkia 7.5" Floating Chlorine Dispenser | Best Pool Floater

The Merkia 7.5" Large Floating Chlorine Dispenser is a simple, inexpensive way to keep your above-ground pool sanitized without constant fuss. Built to hold standard 1"–3" chlorine tablets, the Merkia floater offers an adjustable release, a stable wide base to resist tipping, and an easy top-loading cap — ideal for homeowners who want reliable, low-maintenance chlorination and a low-cost affiliate pick to recommend.

AboveGroundSplash

poolhacker's pool winterizing kit for above ground swimming pools

Poolhacker Pool Winterizing Kit

For anyone seeking a no-nonsense winterizing solution, the Poolhacker Pool Winterizing Kit delivers on simplicity, efficacy and value. Toss in the balls, cover your pool, and rest easy knowing mineral deposits, stains and algae won’t stand between you and your first spring dip.

AboveGroundSplash

Pool RX +

Whether you’re upgrading from manual algaecide tabs or seeking a set-and-forget solution, PoolRx+ offers a scientifically proven, mineral-powered defense against algae and bacteria.

AboveGroundSplash

Floating Chlorine Dispenser

A floating chlorine dispenser is a device designed to hold chlorine tablets and float on the surface of your pool. It gradually releases chlorine into the water, ensuring that your pool remains sanitized and free of harmful bacteria or algae.

AboveGroundSplash