Posts by Andrew Narunsky
Swimming Pool Chlorine and Acid controllers that have all the necessary electrical safety and EMC approvals for domestic use
Domestic Swimming Pool Controllers for ensuring the correct amount of Chlorine and Acid dispensed to your pool are great for keeping your pool water sparkling and germ-free. The key for keeping the Chlorine levels correct is maintaining the correct pH level. This is often neglected in swimming pools because the general consumer is mainly…
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Transparent Brominators and their benefit from a WHS perspective
One of the most commonly used biocides in cooling tower applications is bromo-chloro-dimethyI-hydantoin (otherwise known as BCDMH or hydantoin). BCDMH is a broad-spectrum halogen-releasing biocide for the control of algal, bacterial, and fungal populations in industrial water systems. It is typically supplied in tablet form, and requires a brominator system to hold the tablets and…
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Stenner Multi Function Digital Peristaltic Pumps
When in the market for a high end dosing pump, most users will opt for a Stepper Motor Driven or Solenoid Driven Diaphragm pump with fully digital interface to program the pump. These pumps are fully mulit-fuction and are suited to be used in almost any application having an array of input and output options.…
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CWC Notification regarding Precautionary Measures during COVID-19 Outbreak
At present, it is business as usual for Convergent Water Controls Pty Ltd (CWC), but this situation may change at any time. Should we anticipate any disruptions to the normal course of business, we will advise as soon as practicable. The nature of these disruptions could be in the form of delayed product or service…
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Why is it important to discard the pH buffer solution after calibration?
There are typically 2 types of pH calibration methods, i.e. Single Point or 2 (Dual) Point. Single point calibration Single point calibration is usually done with the pH probe in the process water and the user calibrates the instrument to force the controller to read the same as the user’s independent test results. However, this…
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Why ASTM Coupon Racks?
A Corrosion Coupon Rack is an assembly of pipework that houses 1 or more metal coupons suspended in the water flow through the pipework of the coupon rack. The coupons are basically a piece of metal that are accurately weighed before being inserted into the rack. When they are removed after a period of time,…
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Why is it important to specify what chemical I am dosing.
Not all chemicals are compatible with all chemically resistant materials. For this reason, all metering pumps have differnet options when it comes to specifying the material selection for the Liquid End. (The liquid end refers to the pump head, foot valve, injection valve and tubing, i.e. all materials which come into direct contact with this…
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Does the Dosing pump for my application require any Inputs (Is it necessary to control the pump externally via a pulsing contact or a 4-20mA signal?)?
Our first blog in the series (missed it? catch up here) covered the Flow Rate required and Pressure you intend to pump into. Further to this, all pumps have internal timers which regulate the speed, or frequency at which the pump’s solenoid strokes. The speed is adjusted or programmed on the pump to achieve a…
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What Flow Rate do you require and what pressure do you intend pumping into?
The first questions to ask when selecting a Solenoid Metering Pump should be: What Flow Rate do you require and what pressure do you intend pumping into? All EMEC pumps are rated at a maximum flow rate at a maximum injection pressure (based on water at ambient temperature). For example, a KPLUS 10 05 pump’s…
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