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Spa Chemicals

To keep spa care simple, all our products are color-coded. It's easy to see how the bottles fit into the different product categories. BioGuard offers a full line of products to keep your spa perfect and enjoyable.



Bacteria thrive in hot water. To keep spa water protected all of the time, a residual sanitizer is needed even if the spa is equipped with an ozone system.


Chlorine Concentrate

The sanitizing power of chlorination in concentrated granules that dissolve quickly and completely. With a near neutral pH, it's also easy to maintain balanced water. Chlorinating Concentrate should be added directly to spa water while the pump is running. Use regular doses as a sanitizer and shock doses as an oxidizer.

Brominating Concentrate

The strongest bacteria fighter in powerful granules that are extremely easy to use. Applied in the correct amount while the pump is running. No need to pre-treat with bromide salts. No need to add oxidizers to activate it. And since Brominating Concentrate is pH neutral, there is no need to adjust pH or total alkalinity either. This "one-step" product is used as a regular sanitizer and as an oxidizer to rid the spa of odors and undesirable compounds.

Brominating Tablets

The power of an organic brominating compound (BCDMH) compressed into 1-inch tablets that dissolve slowly and protect continuously. Particularly good for commercial spas and other spas with big bather loads. These tablets are acidic and may lower pH, so pH and total alkalinity should be tested frequently and adjusted as necessary. Use Brominating Tablets in a brominator or in a SpaGuard Floating Dispenser.


When people use spas, they leave undesirable compounds like body oil, perspiration and cosmetics that can irritate skin, burn eyes and create odors. Oxidizing, also known as shocking the water, removes these undesirable compounds and restores water clarity and comfort. An oxidizer should be used weekly in most residential spas, more frequently in heavily-used or commercial spas.


Enhanced Shock
Every spa needs to be shocked to eliminate undesirable compounds that build up with use. Enhanced Shock allows you to quickly shock your spa and re-enter in just fifteen minutes as long as the free chlorine is between 1-4 ppm. It also offers additional benefits—like keeping the water sparkling and fresh. Enhanced Shock is available in several sizes
This multi-purpose oxidizer is perfectly formulated for spas. Each ingredient in this blended product performs an important role:

  • The non-chlorine oxidizer breaks apart chloramines and reactivates bromide ions.
  • The dichloro oxidizes undesirable compounds and removes odors.
  • The flocculent/clarifier helps filter out particles which don't oxidize easily.
  • The pH buffer prevents drastic changes in the pH balance. Enhanced Shock is effective and easy to apply. Spas can be used again as soon as the chlorine residual drops to 4 ppm.

Spa Shock

This non-chlorine shock is the ideal oxidizer for spas with an ionizer unit. It makes undesirable compounds (body oils, lotions, sweat, etc.) disappear. Spa Shock is simple to use — just apply directly into your spa water while the pump is circulating. Fast-acting, this product allows you to return to the spa 15 minutes after application. This formula is pH buffered so its easier to keep the water balanced. Try Spa Shock in two convenient sizes (40-oz and 5-lbs) - and see how great it works.


Balanced water is essential to soaker comfort, water clarity, sanitizer efficiency, and the longevity of spa surfaces and equipment. pH is the most critical factor. It is also the most sensitive, changing rapidly when bathers, products or other elements enter the water. When total alkalinity is in balance, it buffers the pH. When metals and minerals like iron, copper, manganese and calcium are out of balance, they can also damage surfaces and equipment. The SpaGuard family includes products to manage all these factors


pH Decreaser

Lowers the pH (if it is above 7.6) and helps prevent the formation of calcium scale.

pH Increaser

Raises the pH (if it is below 7.4) and helps prevent corrosion.

Total Alkalinty Increaser

Stabilizes pH by balancing total alkalinity. Proper TA helps buffer pH to minimize the risks of corrosion, scale and soaker discomfort.

Calcium Hardness Increaser

Raises calcium levels to prevent the corrosion that "soft" water can cause.


The SpaGuard line of cleaners and clarifiers improves the water's appearance, extends filter performance, and protects spa surfaces.


Stain and Scale Control

Scale or calcium carbonate build-up can cause damage to your spa surface as well as your circulation system. BioGuard’s newly reformulated Stain & Scale Control does a great job of preventing scale—more than four times better than the previous formula—by introducing powerful agents that bond to problem-causing calcium ions in your spa water. Stain & Scale Control will also tie up metals in your water—such as iron, copper and manganese—that can cause stains and discoloration. Even better, you can use Stain & Scale Control to treat existing scale and metal problems


Surface Cleaner

A powerful, low-sudsing cleaner that works with spa water chemistry. Used to remove the ring of oil and dirt that serves as a breeding ground for bacteria that builds up around the waterline and inside the skimmer. The waterline should be cleaned frequently. The spa's interior surface should be cleaned every time the spa is drained and refilled


Natural Spa Enzyme

Eliminates oils before they collect at the waterline or clog the filter. Natural Spa Enzyme "digests" and converts them into carbon dioxide and other easy to remove compounds so the waterline and the filter can go longer between cleanings.

SpaGuard Filter Cleaner and Degreaser

A good thing got better. BioGuard Cleaner and Degreaser was always terrific at chemically breaking down the oils and dirt that stay embedded in your filter's fabric. Now the quart-size bottle comes with a convenient trigger sprayer to make application practically effortless.

Water Clearifier

Clears cloudy water by combining small particles into larger ones that filter can remove. Improves filter efficiency, and does not affect pH.

Water Freshener

Other fresheners cover odors with a fragrance or become less effective when bromine or chlorine residuals are present. SpaGuard Water Freshener works well with any sanitizer and eliminates the odors, restoring the naturally clean smell of the water.


Quickly eliminates any surface foam caused by undesirable compounds and detergents.