Hot tub chemicals and supplies

Clear, safe hot tub water, made simple

Leisure Time Spa 56, Renew shock, test strips and everything else your tub needs, plus a plain-English guide so you only buy what your water calls for.

Shop best sellersHot tub chemical guide

  • Name brands

    Leisure Time, EZ Spa, HTH and more, labeled by brand and size.

  • Ships across the US

    Rates and delivery estimates show at checkout.

  • Damaged or wrong?

    Email us within 7 days for a replacement or refund.

  • Real answers

    Water questions? info@spachemguy.com

Best sellers

The hot tub chemicals our customers order most: Leisure Time Spa 56 chlorine granules and Renew non-chlorine shock. Together with test strips, they cover the weekly basics for most chlorine hot tubs.

See how they fit into a routine in our hot tub chemical guide.

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Shop by what your tub needs

A simple weekly hot tub routine

  • 1. Test

    Dip a test strip two or three times a week to check sanitizer, pH and alkalinity.

    Test strips 

  • 2. Balance

    Adjust alkalinity first, then pH. Balanced water protects your tub and helps sanitizer work.

    pH and alkalinity 

  • 3. Sanitize

    Keep chlorine or bromine in range after every soak so the water stays safe.

    Sanitizers 

  • 4. Shock weekly

    Shock once a week and after heavy use to clear oils, lotions and odors.

    Shock 
Read the full guide

Clear water essentials

Treatments for the problems every hot tub owner runs into: cloudy water, foam, metal stains, scale, and gunk in the plumbing. Foam Down knocks down foam fast, Metal Gon and Defender help with stains and scale, and Jet Clean flushes the lines before a drain.

Find the cause first: see why is my hot tub cloudy and how to get rid of hot tub foam. Many problems start with water balance, so check our pH and alkalinity balancers too.

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Hot tub care tips

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Why SpaChemGuy

  • Brands you know

    Leisure Time, EZ Spa, Confer, EcoOne and more, with the brand and size right in every product name.

    Shop Leisure Time 

  • Plain-English help

    A simple weekly routine and fixes for cloudy water, foam and scale, so you buy only what your water needs.

    Read the guide 

  • A small Texas business

    SpaChemGuy is based in Bridgeport, Texas. Questions about your water or an order? Send us a message.

    Contact us 

Hot tub questions

Chlorine or bromine: which should I use?

Both keep hot tub water safe. Chlorine works fast and is easy to dose after each soak; bromine holds up a bit better in hot water. Pick one and stick with it. Read the full comparison.

How often should I shock?

Once a week, and after a party or heavy use. How to shock a hot tub.

Why is my water cloudy?

Usually low sanitizer, high pH or alkalinity, a dirty filter, or oils building up. Test, balance, shock and clean the filter, then use a clarifier. Full fix list.

How often should I drain and refill?

Every three to four months for most hot tubs, sooner with heavy use. Step-by-step drain and refill.

Where do you ship?

We ship to addresses in the United States. Rates and delivery estimates show at checkout. See our shipping policy.