For most U.S. distribution systems using chloramination, nitrification is a leading water quality concern. However, by combining active mixing with regular tank maintenance and efficient operation, nitrification can be tamed in even the most challenging climates.
A Maine utility uses active mixing to cope with storage tank stratification caused by widely varying seasonal temperatures. Using a PAX Water Mixer, the utility was able to solve residual loss in the hot summer months and prevent ice damage in cold winter months.
Jason Oppenheimer of PAX Water explores how active mixing can be used as a cost-effective and sustainable tool to manage water quality in reservoirs - reducing the amount of chlorine based disinfectants needed while maintaining the highest quality and consistency of water delivered.
Jason Oppenheimer and Peter S. Fiske of PAX Water discuss how active mixing in water storage tanks prevents water quality deterioration from spreading to the distribution system, eliminates the need for flushing and enhances operational efficiency by preventing thermal stratification and ensuring uniform distribution of disinfectants.
PAX Water CEO Peter Fiske discusses the pitfalls of ice damage in water tanks and explains how active mixing can be used as an ice prevention tool. Dr. Fiske points to real world examples of utilities using mixing to safeguard storage tanks, including Dawson Creek, British Columbia and Anchorage, Alaska.

Learn how to quickly identify water quality problems, such as taste and odor, bacterial growth and residual loss, before they manifest in tanks.
Old Town, Maine installs tank mixer to prevent ice damage to new glass-lined standpipe in one of coldest winters on record.
This video explains how active mixing can help water operators prevent damage in water storage tank during cold winter months.
Redwood City, California uses an active tank mixer to tame nitrification and stabilize chlorine residual inside storage tank.
This video educates regulators on the benefits of tank mixing in achieving high water quality and Stage 2 compliance.