Challenge 

Zionsville Community High School in Zionsville, Ind., installed a controller for each of its two indoor swimming pools. The controllers could not adequately regulate the parts per million (PPM) and oxidation-reduction potential(ORP) levels in the pools, which were thrown off balance by a newly installed UV system and bather loads. Misaligned PPM/ORP levels resulted in increased maintenance time, greater wear and tear on equipment, higher chemical and labor costs, and more frequent health complaints.

The school needed a dual controller that would simultaneously monitor and control PPM, ORP, pH, temperature, water level, and chemical injection lines in both pools. The dual controller also needed to have offsite communication and data collection capabilities. In addition, it needed to be modular in design for future installations of energy-efficient products such as variable frequency drives.

Solution 

Zionsville Community High School agreed to serve as a test site for a dual controller from Siemens Water Technologies.  The Strantrol® Impact Aquatic Management system consists of a single controller that simultaneously controls PPM and ORP in both pools, therefore allowing operators to stay within health code limits of PPM and ensure the health and safety of water by ORP control.

Results

Today, the Strantrol® Impact Aquatic Management system is performing exceptionally well and works in tandem with a UV light disinfection system. The proper pool chemistry provides patrons and students with a healthy swimming environment as well as better air quality in the aquatic center. 

“At first, I was wary the system would do everything Siemens claimed,” says John Crist, physical education/ health department chair and aquatics director at Zionsville Community High School. “I can monitor the system from anywhere, make changes as needed and document data.  We liked the controller so much, we made it permanent.”