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Sodium Bicarbonate for Pools and Spas

In a swimming pool, sodium bicarbonate raises total alkalinity, which stabilizes pH and stops it from swinging. About 1.5 lb per 10,000 gallons (roughly 18 g per cubic meter of water) raises total alkalinity by about 10 ppm. The usual target is 80–120 ppm total alkalinity, with pH between 7.2 and 7.8.

Pars Baking Soda Group manufactures sodium bicarbonate in its plants in Mashhad and Shiraz and supplies it in 25 kg bags and jumbo bags to pool chemical distributors and water treatment companies in Russia, Central Asia, and neighboring markets.

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What Does Sodium Bicarbonate Do in a Pool?

Sodium bicarbonate is the standard alkalinity increaser for swimming pools and hot tubs.

Raises Total Alkalinity

Total alkalinity measures how well pool water resists pH changes. Sodium bicarbonate is the most common way to raise it when it falls below about 80 ppm.

Stabilizes pH

With the right alkalinity, pH stays steady instead of "bouncing". This protects swimmers' eyes and skin and helps chlorine work efficiently.

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Protects Pool Surfaces and Equipment

Low alkalinity and low pH make water aggressive, which can etch plaster and corrode metal parts such as heaters, pumps and ladders.

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Spas and Hot Tubs

Sodium bicarbonate is used the same way in spas and hot tubs. Because the water volume is small, add it in small amounts and re-test often.

How Much Sodium Bicarbonate to Add to a Pool

About 1.5 lb per 10,000 US gallons, or roughly 18 g per cubic meter (1,000 liters), raises total alkalinity by about 10 ppm.

Pool volume	To raise total alkalinity by 10 ppm	By 20 ppm
10 m³ (about 2,600 gal)	about 180 g	about 360 g
25 m³ (about 6,600 gal)	about 450 g	about 0.9 kg
50 m³ (about 13,200 gal)	about 0.9 kg	about 1.8 kg
100 m³ (about 26,400 gal)	about 1.8 kg	about 3.6 kg

Values are approximate. Always test the water first, add no more than the calculated amount at once, and re-test after the water has circulated.

How to Add Sodium Bicarbonate to Your Pool

1. Test the water. Measure total alkalinity and pH with a reliable test kit or strips.

2. Calculate the dose. Use the table above based on your pool volume and how many ppm you need to raise alkalinity.

3. Add it with the pump running. Broadcast the powder over the deep end, or pre-dissolve it in a bucket of water first.

4. Circulate and re-test. Wait at least 6 hours, then test again before adding more.

Good to know: Sodium bicarbonate does not lower pH, and it raises pH only slightly. If your alkalinity is fine but pH is too low, use soda ash (sodium carbonate). If pH is too high, use a pH reducer.

Sodium Bicarbonate vs. Soda Ash for Pools

Both are sold as pool chemicals, but they do different jobs.

	Sodium bicarbonate (NaHCO₃)	Soda ash (Na₂CO₃)
Sold as	Alkalinity increaser	pH increaser
Main effect	Raises total alkalinity	Raises pH
Effect on pH	Small increase	Strong increase
Use when	Alkalinity is below about 80 ppm	pH is below 7.2 and alkalinity is acceptable

Sodium Bicarbonate Supply for the Pool Industry

We supply pool chemical distributors, pool service companies and water treatment firms directly from our plants in Iran.

Direct Manufacturer

Two production plants in Mashhad and Shiraz, with a combined monthly capacity of over 24,000 tons.

Bulk Packaging

Industrial grade sodium bicarbonate in 25 kg bags and jumbo bags, suitable for repacking into pool chemical products.

Specifications on Request

Specifications and a COA for our industrial grade sodium bicarbonate are available on request.

Export Markets

We welcome inquiries from pool chemical and water treatment companies in:

Russia

Belarus

Kazakhstan

Uzbekistan

Turkmenistan

Kyrgyzstan

Tajikistan

Armenia

Azerbaijan

Iraq

Afghanistan

Pakistan

Turkey

UAE

Pool pH Balance and Maintenance Guide Industrial Grade Sodium Bicarbonate Household Baking Soda

Frequently Asked Questions

What does sodium bicarbonate do in a pool?

It raises total alkalinity, which keeps pH stable, protects pool surfaces and equipment, and helps chlorine work properly.

How much sodium bicarbonate should I add to my pool?

About 1.5 lb per 10,000 gallons, or roughly 18 g per cubic meter of water, raises total alkalinity by about 10 ppm. Test first and add in stages.

Does sodium bicarbonate raise or lower pH?

It raises pH slightly but never lowers it. Its main effect is on total alkalinity. To raise pH strongly, use soda ash.

Is pool alkalinity increaser the same as baking soda?

Most alkalinity increasers are sodium bicarbonate, the same compound as baking soda. Check the product label to be sure.

Can I use sodium bicarbonate in a hot tub or spa?

Yes. It raises alkalinity in spas the same way, but because spas hold much less water, add small amounts and re-test after circulation.

Do you supply sodium bicarbonate to pool chemical companies?

Yes. Pars Baking Soda Group supplies industrial grade sodium bicarbonate in 25 kg bags and jumbo bags, and welcomes inquiries from pool chemical and water treatment companies in Russia, Central Asia and neighboring countries.

Need Sodium Bicarbonate for Pool Chemicals?

Tell us the quantity, packaging and destination country you need. Contact Pars Baking Soda Group for specifications, a COA, bulk pricing and export supply.

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