Cooling water has a narrow comfortable band. If the pH drifts acidic, the metal surfaces in the heat exchanger and the basin start to pit, and the corrosion rate climbs. If the pH drifts too alkaline, calcium carbonate scale deposits on the hot surfaces, and the heat transfer drops. The Langelier Saturation Index (LSI) is the single number that captures this balance, and a pH booster is one of the levers used to hold it. Innovacorp manufactures and supplies pH boosters for cooling water systems in Nepal — alkalinity builders that shift the LSI towards the slightly scale-forming side, where a thin protective film forms on the metal — selected on the cooling water chemistry, not on a fixed catalogue grade.

What pH Does to a Cooling Water System

Two failure modes sit on either side of the pH band:

• Too acidic (low pH): The metal surface cannot hold the protective oxide film. Pitting starts in the heat exchanger tubes, the basin and the low-flow sections. The corrosion rate climbs quickly below pH 6.5 in most cooling waters.
• Too alkaline (high pH): Calcium carbonate scale deposits on the hot heat exchanger surfaces and the fill. The scale acts as an insulator, the approach temperature climbs, and the tower works harder for the same cooling.
• The target band: Slightly scale-forming — enough to maintain the protective film, not so much that scale deposits. This is what the LSI captures, and it is the band the pH booster is used to hold.

The LSI combines pH, calcium hardness, total alkalinity, temperature and dissolved solids. A negative LSI means the water is corrosive; a positive LSI means it is scale-forming. The pH booster is one of the three or four levers used to hold the LSI in the target band, alongside the scale inhibitor, the corrosion inhibitor and the cycles of concentration.

Where pH Booster Fits in a Nepal Plant

• Cooling towers (open circuit): The pH drifts acidic when the make-up water carries dissolved CO₂, or when the microbial activity produces organic acids. The booster holds the pH in the target band, which helps the corrosion inhibitor work. The cooling water treatment chemicals page covers the full cooling water programme.
• Chiller loops (closed circuit): The pH drift is slower in a closed loop, but it still happens — through minor make-up, through microbial activity, or through the corrosion reaction itself. The booster is used as part of the closed-loop water treatment programme.
• Heat exchangers: The pH at the exchanger surface is what matters for both corrosion and scale. The booster is dosed upstream of the exchanger, with the dose set on the circulating water chemistry.
• Cooling water for sugar mills: The condenser and the cooling tower in a sugar mill need the same LSI control, especially during the crushing season when the make-up water chemistry shifts. The boiler water treatment chemicals page covers the boiler side, which is a separate treatment programme.

The Product Forms We Manufacture and Supply to Nepal

Product form	Where it is used	Typical dose
Liquid pH booster (standard)	Continuous dosing into the circulating water or the make-up line.	Set on the pH, alkalinity and LSI of the circulating water.
Liquid pH booster (concentrated)	Where the storage space is limited and the dose volume has to be lower.	Set on the circulating water chemistry.
Powdered pH booster	For plants that prefer batch preparation in a dosing tank.	Set on the circulating water chemistry and the dosing setup.

The exact product form and dose are confirmed after a cooling water analysis. We do not recommend a fixed package — the water chemistry and the system decide.

How Each Product Form Works

• Liquid pH booster (standard): A concentrated alkaline formulation that raises the pH and the total alkalinity of the circulating water. The dose is set on the gap between the current pH and the target band.
• Liquid pH booster (concentrated): A higher-concentration grade for applications where the storage space is limited — the dose volume is smaller, but the chemistry is the same.
• Powdered pH booster: For plants that prefer batch preparation — the powder is dissolved in a dosing tank and fed into the circulating water.

Specifications

Grade-wise technical data — appearance, active content, pH of the concentrate, density and shelf life — is shared as a TDS on request for the specific product under consideration. Final specification is confirmed against the product TDS before dispatch.

Dosage and Feed Point

Dose is set on the current pH, alkalinity and LSI of the cooling water, not a fixed figure per cubic metre. Working reference ranges for Nepal plants:

• Cooling tower (open circuit): Dosed into the circulating water or the make-up line, with the dose adjusted as the cycles of concentration change.
• Chiller loop (closed circuit): Dosed into the loop, with the dose set on the initial fill chemistry and the minor make-up.
• Control check: Daily pH and conductivity; weekly LSI calculation from the pH, calcium hardness, alkalinity and temperature.

These are starting approaches. The working dose is confirmed from your cooling water analysis and the TDS for the product. Our team reviews the dosing plan with your plant engineer before the first charge.

Packing

• 35 kg HDPE carboys for liquid grades (standard)
• 200 L HDPE drums for liquid grades
• 25 kg HDPE bags for powdered grades (where applicable)

Standard industrial packing; pack sizes on request.

Support from Water Analysis to First Charge

For cooling towers, chiller loops and heat exchangers in Nepal, we review your cooling water analysis, go through the product selection with your plant engineer, and review the dosing plan before the first charge. If the LSI or the corrosion rate starts drifting, call us — we will look at the operating data with you. The industrial biocides page covers the microbial side of the cooling water programme, which is linked to the organic acid load that affects the pH. TDS is shared on request.

Frequently Asked Questions

What does a pH booster do in a Nepal cooling water system?

A pH booster raises the alkalinity of the cooling water, which shifts the Langelier Saturation Index (LSI) towards the slightly scale-forming side — the side where a thin protective film forms on the metal surface. That film is what limits acidic pitting in the heat exchangers. The product is dosed into the circulating water or the make-up water, depending on the system layout.

How does LSI control work in a cooling tower?

The Langelier Saturation Index combines pH, calcium hardness, total alkalinity, temperature and dissolved solids into a single number. A negative LSI means the water is corrosive; a positive LSI means it is scale-forming. The target is a slightly positive LSI — enough to form a protective film, not so positive that scale deposits. A pH booster is one of the levers used to hold the LSI in that band, alongside the scale inhibitor and the cycles of concentration.

How is the pH booster dosed in a cooling water system?

Dose is set on the current pH, alkalinity and LSI of the cooling water, not a fixed figure per cubic metre. The product is dosed into the circulating water or the make-up water, with the dose adjusted as the cycles of concentration and the make-up water chemistry change. Working ranges are confirmed from your cooling water analysis and the TDS for the grade.

How should pH booster be stored at a Nepal plant?

Store in the original container, in a cool, dry, ventilated area away from direct sunlight and incompatible chemicals. Keep the lid tight when not in use and follow the handling guidance on the TDS. Do not mix with other chemicals in the storage area.

Share Your Cooling Water Analysis

Send us your cooling water analysis — pH, total alkalinity, calcium hardness, temperature and conductivity — along with the system type (open tower, closed chiller loop or heat exchanger), and we will suggest the product form and a working dose range for your plant. Call +91-9312871070.