Comfort Inn Boston / Logan Installs FlowMark

Comfort Inn Boston / Logan Installs Chemical-Free Electronic Water Treatment System for Cooling Towers & Heat Exchanger

The Comfort Inn & Suites Boston/Logan International Airport has installed a FlowMark “chemical-free” (also called “pulsed-power”) water treatment system for its cooling tower and heat exchanger. The FlowMark system, installed by Conservation Solutions Corporation (CSC), has sharply cut water use and eliminated the need for hazardous chemicals to control calcium, bacteria, scale, corrosion and biofilm.

“Chemical-free” water treatment systems are used to treat cooling towers, chillers, heat exchangers and evaporative condensers. They replace chemicals with an electronic field. “Chemical-free” systems have the best payback for hotels with cooling towers and chillers.

The Comfort Inn’s new system cost $6,300 to install and saves the hotel roughly $5,685 per year.

 Financial Summary

Annual Water & Sewer Savings                $2,724

Annual Chemical Savings                            2,400

Annual Electricity Savings                              366

Annual Maintenance  Contract Savings       195

Total Savings:                                               $5,685


Simple Payback:                                   1.1 years

Return on Investment (ROI):                89.8%

Read More: Comfort Inn Boston

FlowMark Disinfection Systems Now Available

DS-3FlowMark Disinfection Systems (DS) have been developed to enhance biological control of our Pulse Power Water Treatment product line. Dozens of cooling towers are maintaining excellent biological control using only our Pulsed Power System as it promotes calcification of microbes which limit their ability to metabolize nutrients and dispose of waste. Typical Bacteria Plate Counts (HPC) average 500 CFU/ml or less with our Mark series products alone. In cases where the mineral content of the make-up water is too low to promote calcification of microbes or when persistent algae growth is a problem we now have the product to fill the gap with FlowMark DS Systems.

Click here to view the DS product line


Medical BuildingIn October 2013 a FlowMark model Mark-III was installed on the 6” diameter PVC riser of a 300 ton evaporative condenser at a medical building in Lake Marry Florida. All chemical treatment was discontinued.

Over the course of 12 months the conductivity bleed set point was gradually increased to attain maximum water savings. Cycles of concentration by chlorides were increased from 4.1 to 14.5 with no new scale forming.

Click Here for full Project Profile (.pdf)

FlowMark Replaces Chemicals

MK-III InstallIn October 2013 a side by side study comparing FlowMark Electronic Water Treatment to conventional chemical water treatment began at a prominent insurance company in New York. Towers 1 & 2 remained on chemical treatment and a FlowMark Electronic Water Treatment System model Mark-III was installed on the 6” steel condenser water pipe feeding towers 3 & 4. All chemical treatments to towers 3 & 4 were discontinued. This document details findings following the 9 month comparison.

Click Here for full Project Profile (.pdf)


Flowmark DAF TestA test was conducted to see what affect FlowMark Electronic DAF Water Treatment would have assisting colloidal solids removal from wastewater.

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DAF TESTA test was conducted to see what affect FlowMark Electronic DAF Water Treatment would have assisting blood removal from wastewater.
Influent to the DAF was pumped from a batch equalizaon tank that was connuously mixing.

Click here to read more (.pdf)