Alvim vs. NCH vs. Solenis vs. Nalco: Comparing Biofilm and Microbial Activity Sensors
Most water treatment programs still find out about biofilm the same way: heat transfer drops, a filter clogs, or someone finally swabs a coupon and sends it to a lab. By then the biofilm is already established and a shock dose is the only way out. The sensors on the market today claim to catch […]
PTSA, Tagged Polymer, and Fluorescein: Understanding Water Treatment Tracer Chemicals
PTSA, tagged polymer, and fluorescein are all used as tracers in water treatment programmes, but they serve different purposes and require different measurement methods. Understanding the distinction is essential for correct programme monitoring.
Non-Chemical Water Treatment for Cooling Towers: A Practical Guide
A technical comparison of non-chemical cooling tower water treatment methods — magnetic conditioning, ozone, pulsed power, electrochemical, and more — and where the SKW System fits.
Condition-Based vs Outcome-Based Cooling Tower Water Treatment: Measuring the Result Instead of the Recipe
A cooling tower can run within every setpoint on the controller — conductivity in range, pH in range, ORP in range — and still be forming scale, growing biofilm, and corroding the heat exchanger. That’s not a contradiction. Conductivity, pH, and ORP were never measuring those failures directly. They were measuring conditions that make those […]
Why Wait Until Algae Is Visible? Early Chlorophyll-A Detection in Cooling Tower Water Treatment
Algae is one of the few cooling tower problems a water treatment provider doesn’t strictly need a sensor to find — green slime on the basin walls or a film across the fill media is visible to anyone who looks. That’s exactly the problem. By the time it’s visible to you on a service visit, […]
PTSA and Tagged Polymer Sensors: Two Different Things Being Measured, Not Two Versions of the Same Test
Ask most operators what a PTSA sensor and a tagged polymer sensor do, and the honest answer is usually “they both check the inhibitor.” That’s true in the loosest sense, but treating them as interchangeable misses why cooling tower programmes across Malaysia increasingly run both rather than picking one. They measure two genuinely different things. […]
Corrosion Coupons vs. Corrosion Rate Sensors: Why Waiting 90 Days to Find Out Is a Problem
Most cooling tower and chiller operators find out about a corrosion problem in one of two ways: a coupon comes back from the lab with a number that’s already 60 or 90 days old, or a leak develops and the corrosion has already been happening for months. Both are after-the-fact. Neither tells you what was […]
The Consequences of Running a Cooling Tower Above Its Maximum Cycles of Concentration
Cycles of concentration is one of the most important parameters in cooling tower operation. It determines how much mineral content builds up in the circulating water relative to the makeup water, and it directly controls both water consumption and the risk of scale and corrosion. Most operators know they should monitor it. Far fewer understand […]
Why Conductivity Alone Is Not Enough to Control a Cooling Tower
Conductivity control is the foundation of every cooling tower water treatment programme. It keeps dissolved solids from concentrating to the point of scale formation, and it triggers the bleed-and-dose cycle that maintains chemical treatment levels. It is necessary. It is also not sufficient. A cooling tower controlled only by conductivity is a system that manages […]
Pre-Bleed Lockout and Lockout Period: Why These Two Controller Features Matter for Cooling Tower Treatment Accuracy
Cooling tower water treatment controllers are most commonly evaluated on what they can control — conductivity setpoints, biocide dosing schedules, pH management. What is less often discussed is what they prevent: the accidental delivery of chemicals under conditions where those chemicals will not work, or worse, will cause damage. Two features in the Aquarius Ultima […]