What is the ideal bromine level?

3-5 ppm for hot tubs and 2-4 ppm for indoor pools.

How often should I dose?

Top-up every 2-4 days; weekly initial bank refresh after a water change.

Can I bathe straight after dosing?

Wait until bromine reads below 8 ppm; usually 30-60 minutes after dosing.

How long does 1 kg last?

Approximately 5-6 months of top-ups for a 1500 L hot tub.

Are bromine granules safe for sensitive skin?

Yes, bromine forms fewer skin-irritant by-products than chlorine and is the standard choice for sensitive bathers.

Should I use granules or tablets?

Granules are for fast top-ups and the initial bank; tablets are for slow daily release. Most users run both together.

What is the active ingredient?

Bromochlorodimethylhydantoin (BCDMH) at >= 60% available halogen.

Why do bromine systems need a bank?

Bromine cycles between active HOBr and spent bromide. The bank is the bromide reserve that the chlorine fraction in BCDMH continually re-oxidises.

Does bromine raise total dissolved solids?

Yes. Heavy long-term dosing pushes TDS up; refresh the water when TDS exceeds 1500 ppm.

Bromine not climbing?

Raise pH to 7.4 and dose the initial bank rate.

Strong bromine smell?

Shock with MPS at 17 g per 1000 L; ventilate for 30 minutes.

Dose pH minus weekly; bromine systems run higher pH than chlorine.

Bromine granules vs tablets?

Granules dissolve fast for instant top-ups. Tablets give a slow, steady release. Use both together for stable hot tub care.

Bromine vs stabilised chlorine?

Bromine is gentler at hot tub temperatures. Stabilised chlorine is more cost-effective for outdoor pools with heavy UV.

Hot Tub Bromine Granules BDCMH

Name: Hot Tub Bromine Granules BDCMH
Brand: ClearSpa
SKU: ws-2
Availability: InStock
Rating: 5.0 (7 reviews)

Fast-acting bromine granules for hot tubs and spas. A BCDMH-based granular sanitiser that establishes a bromine bank, then keeps the water gentle on bather skin and stable through wide pH swings.

Establishes a bromine bank for ongoing sanitisation.
Sanitises through wider pH band (7.0-7.8) than chlorine.
Stays effective at hot-tub temperatures up to 40 C.
Forms fewer eye-stinging by-products than chlorine.
Works alongside Bromine Tablets 20g for steady ongoing dose.