Identify from manufacturer specifications the acceptable range of conductivity for equipment operation. Select a manufacturer that can meet or exceed our needs for water input quality range and performance.
Temporarily install the new unit for evaluation purposes.
Verify vendor-specified performance over the published range of operation.
Using the current on-line monitors, program the wet benches and recovery tank parameters to vary the contamination levels in the recovered water.
Challenge the EDI with the complete range of feed water qualities. These include our normal variety of chemistries and conductivities of about three uS to 300 uS, and up to 1000 uS for overload condition problems.
Record instantaneous and averaged conductivity over a month of operation. Forward data and operation information to the manufacturer.
Challenge the EDI with events of organics and other species to look for failure/wear mechanisms in the plumbing, electronics and product quality.
Prepare summary report in preparation to purchase, permanently install, and recommend unit; or return to manufacturer.