Opening & Closing Pool Chemicals

We’ve taken the guesswork out of what’s needed to properly open and close your pool with step-by-step opening & closing chemical kits. Some are so easy to use, they’ve put “hassle-free” in the name! The Hasslefree Pool Opening & Closing Kit reduces or prevents off-season waterline rings from forming while cleaning and protecting your pool during the off-season and saving you time and money. Pool Magic Spring & Fall makes opening and closing fast and easy for pools with cooler water temperatures.

Sanitizers & Algaecides

Once your pool is open you’ll want sanitizers and algaecides to keep it crystal clear, sanitary, and ultimately safe to swim in. Pool Supply Unlimited’s large selection of sanitizer chlorine tabs, bromine tabs, and algaecides helps you achieve the clean and sanitary pool you want whether it’s open for the summer season or all year long.

Balancers & Shocks

Balancing your pool’s pH levels is a crucial part of pool maintenance. A pH that’s too low can lead to corrosive water, dissolving metal, surface stains, bodily irritation, vinyl wrinkles, and more. Conversely, a high pH could lead to scaling water, plugged filters, reduced circulation, skin irritation, and a cloudy pool. That’s why PH balancers are an essential pool chemical. If you notice your pool could use an increased pH level, you’ll want to shop for increasers like the ClearView pH UP. To lower your pH level, you’ll want a balancer like the ClearView pH DOWN. We also carry a range of stabilizers, and neutralizers, and test strips.

Shocking your pool is a great way to ensure that you’re keeping unwanted pool bacteria at bay. Shop our large selection of pool shocks by Clorox, Clearview, Leisure Time, and Pool Essentials to keep your pool looking great regularly.

Maintenance Pool Chemicals, Test Kits & Strips

Reduce operational costs and clear up cloudy water quickly with Pool Supply Unlimited’s great selection of maintenance chemicals like vinyl cleaners, clarifiers, stain and phosphate removers, saltwater maintenance kits, solar shield kits, and more.

Test kits & strips also make checking your maintenance needs easy, saving you time and money by giving you valuable insight on what treatments your pool will benefit from.

No matter what your swimming pool chemical needs are, Pool Supply Unlimited is sure to have the pool chemicals you need to keep your pool running at its cleanest and most efficient level possible.

Chemicals 101

There are a lot of factors involved in getting pool water clean, crystal clear and into the natural looking condition that we have become accustomed to. Among the unsung heroes working behind the scenes are pool chemicals.<br>

Extend the Life of Your Salt Cell

Extend your salt cells life by following these easy steps!

How to Open Your Pool in 7 Easy Steps

Opening a pool for the season takes a little more elbow grease than simply ripping off the cover and jumping in. We’ll walk you through how to open a pool after winter so you can get in, cool down, and kick off summer in crystal clear water just begging to be enjoyed.<br>

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ABOUT THE STORE
Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in San Antonio, TX and can land most products to your door (within the 48 contiguous states) in less than a week.