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Jar testing is a method of simulating a full-scale water treatment process, providing sys-tem operators a reasonable idea of the way atreatment chemical will behave and operatewith a particular type of raw water.
A perc test, or percolation test, is a soil test that is performed before installing a septic system tank. The perc test is extremely important because it measures the level of liquid absorption of the soil where the proposed septic tank will be located. It determines how quickly the material from the septic system will be absorbed into the soil.