Quarterly inspections should verify that the tamper-resistant cover is properly secured and
compare actual valve adjustment settings to documented correct adjustment settings for each
valve. If a valve is found to have incorrect valve setting it should be reset to the proper setting
and undergo flow and no-flow testing to verify proper pressure reduction is obtained.
Flow test results should be compared to previous test results, and to system performance
criteria. If the valve adjustment settings match the original and correct settings for each valve
then no significant variance should occur from the original flow testing data.
