Leisure Time Brom Tabs | Slow-Dissolve Bromine

• (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

• 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

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.

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.

• 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)

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