Robelle pH Down dissolving in a pool pail for precise pH adjustment.
Robelle pH Down beside a test kit indicating pH balance target 7.2-7.6.
Robelle pH Down poured onto water surface for even dispersion across the pool.
Robelle pH Down used with a running pool filter for stable water balance.

Robelle

Robelle 6-Pounds Premium pH Down for Pools | Concentrated Sodium Bisulfate | USA Made

High-performance patio lawn and garden made for confident daily results

$35.09

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Why customers choose PatioZora Garden

Balance your pool water with Robelle 6-Pounds Premium pH Down

Robelle 6-Pounds Premium pH Down is a concentrated sodium bisulfate formula designed for residential pools in the USA. When your water's pH climbs above 7.6, this product can help move the level toward a more comfortable range, supporting clearer water and a balanced feel during swims.

Used with your sanitizer and a running filtration system, this pH down can help maintain a pleasant swimming environment and may reduce irritation when the water stays within the target range of 7.2 to 7.6. The product is intended for use with the pool's filter running to promote even dispersion across the pool volume, delivering a more consistent balance from edge to edge.

Key benefits at a glance

  • Sodium Bisulfate for pools
  • Rapidly Decreases pH
  • Proper water balance helps reduce skin and eye irritation
  • Adjust and maintain pH at 7.2-7.6

How to use Robelle pH Down

  • Pre-dissolve the required amount in a plastic pail of pool water. Do not add water to the dry product.
  • Always add the dissolved product into the water. Do not pour water onto the product.
  • With the pool filter running, slowly pour the solution onto the water surface to help even dispersion.
  • Test the pH again after about 2 hours with your test kit.
  • If the reading remains above 7.6, repeat the dosage until it falls within 7.4-7.6.
  • If the pH reads below 7.4, do not apply this product.
  • Avoid applying near metal fittings and never add into the skimmer or through the pump while the filter is off.

Note: Always follow the product label directions and store in a cool, dry place. Robelle pH Down is proudly made in the USA.

FAQ

Q: What is Robelle 6-Pounds Premium pH Down used for?

A: It helps lower high pool pH to a balanced range when used as directed.

Q: How do I apply Robelle pH Down correctly?

A: Pre-dissolve in a plastic pail of water, then pour onto the pool surface with the filter running, and retest after about two hours.

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