📦 Free shipping on most orders over $150.

Leisure Time Brom Tabs | Slow-Dissolve Bromine

SKU: 45401
$37.99

In stock

Pickup available at Leisure Time Inc. - Idaho Falls

Usually ready in 24 hours

View store information

Description

Leisure Time Bromine Tablets (Brom Tabs) are slow-dissolving sanitizing tablets formulated specifically for spas and hot tubs. Active chemistry: Dantabrom (bromochloro-dimethylhydantoin) — a proprietary BCDMH-class compound that delivers 10% more active sanitizer than standard BCDMH tablets and 2.5x the solubility, making it ideally suited for the floating feeders and in-line dispensers used in residential spas. The tablets are low-odor, low-dust, and produce no harsh chlorine smell — making bromine the preferred sanitizer for owners with sensitive skin, eyes, or anyone who simply doesn't want their hot tub to smell like a pool.

Bromine and chlorine both kill bacteria and viruses effectively, but they behave very differently in hot water. Chlorine works in a narrow pH window (7.4–7.8) and loses potency quickly as pH drifts upward — at pH 8.0, chlorine is operating at less than half its strength. Bromine, on the other hand, stays effective across a much wider pH range (7.0 to 8.4), so it tolerates the natural pH drift of spa water without leaving you under-sanitized. Bromine also doesn't produce the "chlorine smell" most people associate with hot tubs, and its sanitizing byproducts (bromamines) remain active sanitizers rather than becoming irritating waste products like chloramines.

One 2.2 lb bottle of Brom Tabs provides several months of continuous sanitation for a typical residential spa when fed through a standard floating dispenser. Combined with the Reserve sodium bromide "bromide bank" at fresh fill and periodic shock from Renew, Brom Tabs form the foundation of one of the most comfortable, low-maintenance sanitizer programs available for residential hot tubs.

Pro Tip: Brom Tabs are designed for continuous slow-dissolve delivery through a floating dispenser or in-line feeder — not for direct addition to spa water. Dropping tablets directly into the tub causes localized over-bromination and can permanently stain or bleach acrylic shells and pillows. If you don't already own a floating bromine dispenser, get one before you open the bottle — they're inexpensive and they're not optional.

Brand

Leisure Time®

What's in the Box
  • (1) Leisure Time Brom Tabs — 2.2 lb (35.2 oz) of slow-dissolving 1" bromine tablets
  • Child-resistant cap with measured-pour opening
  • Full dosing chart and application directions printed on the bottle label
Key Features
  • Dantabrom chemistry — 10% more active sanitizer than standard BCDMH bromine tablets
  • 2.5x more soluble than BCDMH — ideal for floating dispensers and in-line feeders
  • Effective across a wider pH range than chlorine (7.0–8.4 vs 7.4–7.8) — tolerates natural spa pH drift
  • Low odor, low dust — no harsh chlorine smell, gentler on lungs during handling
  • Gentler on skin and eyes — bromamines don't cause the irritation chloramines do
  • Reactivatable byproducts — used bromine can be re-energized with non-chlorine shock (Renew), reducing total chemical use
  • No calcium content — won't add to total hardness in hard water regions
  • Slow-dissolve continuous feed — set the floater and walk away; minimal daily attention required
  • Standard 1" tablet size — fits virtually all spa-grade floating dispensers and in-line feeders
  • Made in the USA by Leisure Time, a trusted name in spa chemistry for over 40 years
How It Works

Bromine tablets work differently than chlorine — and the difference is the reason most owners who switch never go back. The Dantabrom compound in Brom Tabs is a stabilized solid that dissolves slowly in water, releasing hypobromous acid (HOBr) — the active sanitizing form of bromine. Hypobromous acid kills bacteria, viruses, and algae on contact at the recommended 2–4 ppm residual range, just like chlorine does.

The first key advantage is the pH performance curve. Hypobromous acid remains active across a much wider pH range than hypochlorous acid (the active form of chlorine). At pH 8.0, chlorine has dropped to roughly 25% active strength — meaning three-quarters of the chlorine you just dosed is doing essentially nothing. At the same pH 8.0, bromine is still operating at around 75% active strength. Since spa water naturally drifts toward higher pH over time (aeration removes CO₂, raising pH), bromine programs tend to require less constant pH chasing than chlorine programs do.

The second key advantage is the bromamine cycle. When chlorine reacts with bather waste (sweat, oils, ammonia compounds), it forms chloramines — the byproducts responsible for "chlorine smell," eye irritation, and the spent feeling of pool water. Chloramines are weak sanitizers that have to be shocked out of the system. Bromine, in contrast, forms bromamines — which retain significant sanitizing power on their own. Better still, bromamines can be reactivated back into hypobromous acid by adding a non-chlorine shock (like Leisure Time Renew). This regenerative cycle means less total sanitizer use, less smell, and more comfortable water from week to week.

Pro Tip: The "wider pH range" advantage isn't a free pass on pH balance — it's a forgiveness margin. You still want spa water in the 7.4–7.6 sweet spot for comfort, equipment protection, and stable chemistry. The bromine benefit is that if pH drifts to 8.0 during a busy week, your sanitizer keeps working at near-full strength while you address the imbalance, instead of leaving you under-sanitized while you scramble to bring chlorine back. Treat it as insurance, not as license to skip pH testing.

Directions for Use

Initial Bromide Bank (First Fill — Required)

Before Brom Tabs can sanitize effectively, your spa water needs an established bromide reservoir. This is a one-time step per fresh fill that primes the water with bromide ions, which bromine tablets and shock products can then activate into killing form.

  1. Fill the spa with fresh water. If using well water, treat with Metal Gon at this stage.
  2. Balance pH (7.2–7.8) and total alkalinity (80–120 ppm).
  3. Add ½ oz. of sodium bromide (Leisure Time Reserve) per 100 gallons of spa water with the jets running. This establishes the required 30 ppm bromide concentration.
  4. Circulate for at least 5 minutes to disperse fully.

Skip this step and your bromine residual will read low for days no matter how many tablets you add. The bromide bank is essential.

Daily Sanitation (Floating Dispenser)

  1. Fill a spa-grade floating bromine dispenser with Brom Tabs according to the dispenser manufacturer's instructions.
  2. Adjust the dispenser's flow rate ring to begin at the middle setting.
  3. Float the dispenser in the spa water with the cover closed between uses.
  4. Test bromine residual every 2–3 days with a quality spa test strip.
  5. Target residual: 2–4 ppm for residential spas (3–6 ppm for commercial/heavy-use spas).
  6. Adjust the dispenser flow rate higher if residual is too low, lower if residual is too high.

Reactivation Shock (Every 2–4 Weeks)

  1. Over time, used bromine accumulates as bromamines and the active residual drops.
  2. Add 2 oz. of Leisure Time Renew per 250 gallons of spa water with jets running and cover off.
  3. Renew (non-chlorine shock) reactivates the bromamines back into hypobromous acid, restoring active sanitation without adding more bromide.
  4. Circulate with cover off for 15 minutes, then resume normal use.

Storage & Handling

  • Store in original container in a cool, dry, well-ventilated area, away from direct sunlight
  • Keep tightly closed when not in use — bromine tablets absorb moisture from the air and can degrade or fuse together if left open
  • Keep out of reach of children and pets
  • Never mix bromine tablets with chlorine products, biguanide, or oxidizers in dry form — concentrated mixing can cause violent reactions or fire
  • Do not add tablets directly to spa water — always use a floating dispenser or in-line feeder
  • Store separately from acids, oxidizers, and organic materials

Pro Tip: The most common bromine startup mistake is skipping the sodium bromide bromide bank. Tablets dispensed without an established bromide reservoir take 3–5 days to build adequate residual — and during that window, your water isn't properly sanitized. Adding ½ oz. of Reserve per 100 gallons at every fresh fill (and after any major water replacement) brings bromine residual into the target range within hours instead of days. It's a $5 step that saves a week of cloudy, under-sanitized water.

Specifications
  • Product: Leisure Time Brom Tabs Bromine Tablets
  • Size: 2.2 lb (35.2 oz / 1 kg)
  • Form: Slow-dissolving 1" tablets
  • Active Chemistry: Dantabrom (bromochloro-dimethylhydantoin, BCDMH-class)
  • Sanitizer Advantage: 10% more active sanitizer than standard BCDMH
  • Solubility: 2.5x more soluble than standard BCDMH — designed for floating feeders
  • Application: Slow-dissolve via floating dispenser or in-line feeder — continuous sanitation
  • Target Bromine Residual: 2–4 ppm (residential) / 3–6 ppm (commercial)
  • Required Bromide Bank: ½ oz. sodium bromide (Reserve) per 100 gallons at fresh fill
  • Effective pH Range: 7.0–8.4 (significantly wider than chlorine)
  • Typical Usage Rate: 0.015 to 0.10 lb per 300 gallons (varies by bather load)
  • Sanitizer Compatibility: Bromine-program spas; NOT compatible with biguanide systems
  • Calcium Content: None — does not add to total hardness
  • Country of Origin: Made in USA
  • Brand: Leisure Time Spa Care
  • Hazmat Classification: Regulated oxidizer — ground shipping only; not eligible for air shipment (no AK, HI, or international air)
Compatibility

Brom Tabs are formulated for residential spas and hot tubs running a bromine sanitizer program, delivered via floating dispenser or in-line feeder. Not compatible with biguanide sanitizer systems.

  • Sanitizer programs: primary sanitizer for bromine-based programs; pairs with Reserve (sodium bromide) at fresh fill and Renew (non-chlorine shock) for periodic reactivation
  • Not compatible with: biguanide sanitizers (Baqua Spa, SoftSoak); never mix bromine with biguanide chemistry
  • Delivery system: spa-grade floating dispenser, in-line bromine feeder, or automatic chemical feeder — do not add tablets directly to spa water
  • Spa shells: acrylic, vinyl, fiberglass, rotomolded plastic, stainless steel (when fed properly through a dispenser)
  • Equipment: safe on heater elements, circulation pumps, jet bodies, and standard cartridge filters at recommended dosing
  • Companion products: Reserve (sodium bromide bromide bank at fresh fill), Renew (non-chlorine shock for reactivation), and the full Leisure Time Simple Spa Care line — Spa Up / Spa Down for pH, alkalinity increasers, Defender for scale, Metal Gon at fresh fills, Bright & Clear for clarity
  • Brand fit: works in Hot Spring, Caldera, Sundance, Jacuzzi, American Whirlpool, Bullfrog, and every other residential spa brand
Warranty Policy

Most products purchased from our online shop within the last 30 days are eligible for return. Please review our return policy to see the list of items that cannot be returned.

Some major items that are non-returnable:

  • Gift cards
  • Electronics
  • Pumps / Motors
  • Hot Tubs
  • Closeouts
  • Fireplaces
  • Electric Fireplaces
  • Massage Chairs
  • See return policy below for full list of non-returnables.

Leisure Time® Brand FAQs

Can I use Leisure Time products in any brand of hot tub?

Yes. Leisure Time spa chemicals are formulated to work safely in every major brand of residential hot tub, including Hot Spring, Caldera, Sundance, Jacuzzi, American Whirlpool, Bullfrog, and others. They're also compatible with every common spa shell material — acrylic, vinyl, fiberglass, rotomolded plastic, and stainless steel.

Will Leisure Time chemicals work with my sanitizer system?

The Leisure Time line is built for universal sanitizer compatibility. Products work with chlorine, bromine, ozone, mineral cartridge systems (silver/copper), biguanide systems (Baqua Spa, SoftSoak), and salt-generated chlorine systems like the FreshWater Salt System. Specific product labels will note any exceptions.

Can I mix Leisure Time with pool chemicals or other spa brands?

We don't recommend it. Spa chemistry is sensitive, and mixing brands can lead to unpredictable interactions — cloudiness, foam, sanitizer interference, or staining. Leisure Time products are tested as a complete system; using them together gives you the most predictable results and the simplest weekly routine.

How long do Leisure Time products last in storage?

Most Leisure Time chemicals have a shelf life of 1 to 3 years when stored properly. Keep all spa chemicals in their original containers, sealed tightly, in a cool, dry, well-ventilated area away from direct sunlight, freezing temperatures, and other chemicals. Liquid products are most sensitive to temperature; granular products are more shelf-stable but should still be kept dry.

Are Leisure Time products safe for septic systems and drainage?

Yes — when spa water is properly diluted and drained according to local regulations, Leisure Time chemicals at residual levels are safe for typical municipal drainage. For homes on septic systems, drain spa water gradually over your lawn or landscape rather than dumping it all into the septic field at once. Always check local ordinances before draining.

How often do I need to drain and refill my spa when using Leisure Time?

Industry guidance is to drain and refill every 3 to 4 months for a typical 400-gallon residential spa, regardless of which chemical brand you use. Heavy use, lots of bathers, or high-temperature soaking can shorten that interval; light use can extend it. Regular use of Leisure Time clarifiers, filter care, and stain & scale products helps maintain water quality between fills, but no chemical regimen replaces a fresh refill on schedule.

About Leisure Time®

For more than 40 years, Leisure Time® has built spa-specific water care chemistry trusted by hot tub manufacturers, dealers, and homeowners across North America. Where pool chemicals are formulated for tens of thousands of gallons of cool, lightly used water, Leisure Time® products are engineered for the opposite extreme: small water volumes, sustained high temperatures, heavy bather loads, and powerful jet circulation. That combination puts dramatically more stress on water chemistry than a swimming pool ever sees, and it's why generic pool chemicals don't perform reliably in a spa.

The Leisure Time® line covers the complete water care picture — sanitization, water balance, clarity, stain and scale prevention, filter care, and spa surface care — and every product is designed to work together as part of the Simple Spa Care Program. That means no surprise interactions, no guesswork about what's compatible with what, and a predictable weekly routine that takes minutes instead of hours. The full Leisure Time® system works with chlorine, bromine, ozone, mineral cartridge, and biguanide sanitizing programs, and is safe for every common spa shell material.

Leisure Time® is manufactured in the USA and is one of the most widely recommended spa chemical brands in the industry — used by Hot Spring, Caldera, Sundance, Jacuzzi, American Whirlpool, Bullfrog, and many other major spa manufacturers as the dealer-recommended water care solution for their tubs.