pH & Water Balance

Dry acid pH reducer. Step 4 of the PFAP method.

PFAP step 4 How the method works

Sodium Bisulfate pH Reducer (Dry Acid) — 25 kg
PFAP step 4

Sodium Bisulfate pH Reducer (Dry Acid) — 25 kg

₱2,000 per sack

Dry acid to bring pH down. 25 kg sack.

  • 25 kg sack
  • Cash on delivery or GCashPay when we confirm your order, no card needed.
  • We confirm before you payWe check stock and quote your delivery fee first.
  • Genuine, sealed productsThe same products we use on our clients' pools.

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A dry, granular pH reducer for lowering swimming-pool pH toward the recommended 7.2–7.6 range — step 4 of the PFAP pool-care method.

Directions & safety: Test your water first and follow the directions and precautions on the product label. Wear gloves and eye protection.

Always follow the directions and precautions printed on the product label. Never mix pool chemicals together.

Where this fits in the PFAP method

  1. Step 1 Pool shock
  2. Step 2 Filtration
  3. Step 3 Anti-algae
  4. Step 4 pH level

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