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Encore® 700 Chemical Feed Pump Provides Reliable Metering with Minimal Maintenance for Over a Decade at One of New York's Largest Water Districts

Jericho Water District (JWD) is one of the largest water districts in New York, serving 58,000 people through 18,604 residential and commercial service connections on Long Island. Around 4.7 billion gallons of water are produced each year from 25 wells with a daily average of nearly 13 million gallons per day treated and pumped into the distribution system. The district pumps sodium hydroxide into the raw water to increase the pH and control corrosion in the pipes.

"The Encore® 700 pumps have been working great for us. They're a lot less maintenance - virtually maintenance-free - and the problems we had with the previous pump just aren't there with the Encore® 700. We plan to continue converting every pump at all of our wells."

Peter Ranaldo
Assistant Superintendent, Jericho Water District

In 2001, JWD installed its first Encore® 700 pump at a new pump house in Muttontown, New York. The new simplex pump with 2-inch diaphragm and motor-driven pulley drive proved to be more robust with fewer parts, lower maintenance, and less problems compared to the pump it replaced. With the initial success of the first installed Encore® 700 pump, JWD has continued to upgrade its pumps throughout the district. JWD currently has 11 Encore® 700 diaphragm metering pumps and plans to convert the balance as new parts are needed on its old pumps.

The Encore® 700 pump combines the ruggedness of a hydraulic diaphragm drive with the economy, simplicity, and serviceability of mechanical diaphragm liquid ends. Unlike solenoid or loss of motion pumps, the Encore® 700 diaphragm metering pump is driven by a rotating crankshaft where the eccentricity can be smoothly adjusted during operation. There are no return springs and the diaphragm moves with simple harmonic motion. This design provides reliability and longevity, and pump valves operate with far greater efficiency and minimal system vibration.

The Encore® 700 pump, offered in multiple sizes and configurations, is engineered to handle municipal and industrial metering applications in water and wastewater treatment, swimming pools, food processing, chemical processing, brewing and distillation, and agriculture.


Encore<sup>®</sup> 700 Jericho, NY

Encore® 700 Pump

Encore<sup>®</sup> 700 Jericho, NY

Encore® 700 - Muttontown, NY

Encore<sup>®</sup> 700 Jericho, NY

Encore® 700 - Muttontown, NY