In the PCR method, preparation of the medium for culturing
was removed and the device depreciation costs were reduced.
Time spent by experts and subsequently personnel error are
also minimized. The mentioned PCR method is able to cover
three steps of MPN test in the shortest time and with high
sensitivity (detecting total coliforms, fecal coliforms and E.
coli)[11,15]. But, in the first operational stage, PCR can be used
for the primer screening of the accepted water samples per
day. Samples identified as having positive test results by PCR
within a few hours, are entered into the stage of cultivation and
counting. In this project, the execution time of PRC was reduced
with the aim of reducing the operation time. For this reason, the
program of amplification was changed with the time reduction
so that the replication time fell from 2 h and 15 min to an hour.