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• 0 • •1 <br />0 Monitoring System Configurations <br />Our fiberglass Double -Wall Tanks are designed to accommodate wet (hydrostatic) <br />or dry leak -monitoring systems. <br />Wet Annular Space <br />Dry Annular Space <br />Fluid Containment provides a factory -installed "drawstring" at the annular space monitoring <br />fitting, to assist in positioning liquid sensors at the bottom of the annular space. If your <br />tank is ordered with a dry annular space, but fitted with the optional fiberglass reservoir <br />(instead of a monitoring fitting), the drawstring will be positioned within the reservoir. <br />• CONCRETE TRAFFIC PAD <br />='v 7a7.' 7a v. <br />RISER PIPE Monitoring System with Liquid Sensor <br />E-4"ANNULAR Typical configuration for an electronic sensor or <br />SPACE FITTING manual dipstick. <br />1. Use the standard monitoring fitting <br />2. Monitoring cavity can be vented or sealed. <br />DRY ANNULAR SPACE <br />1� LIQUID SENSING PROBE <br />CONCRETE TRAFFIC PAD <br />N <br />Hydrostatic Monitoring System <br />CONCRETE TRAFFIC PAD --�, <br />1. Use antifreeze (brine) solution in cold climates. <br />=o ='v. � a'v. <br />a <br />2. Maximum burial depth from tank top is seven feet <br />OFRESERVOIR- <br />3. Maximum continuous vacuum is 5 psi. <br />LIQUID LEVEL SENSOR <br />below grade. <br />`— STABLE LEVEL RESERVOIR <br />3. Monitoring cavity must be vented to the atmosphere. <br />The optional reservoir sensor includes vent holes to <br />STORED <br />vent the monitoring cavity. <br />PRODUCT <br />4. After installation, set the liquid level in the reservoir <br />DOUBLE-WALL <br />f UNDERGROUND <br />so reservoir is half full. <br />TANK <br />Dry Annular Space <br />Fluid Containment provides a factory -installed "drawstring" at the annular space monitoring <br />fitting, to assist in positioning liquid sensors at the bottom of the annular space. If your <br />tank is ordered with a dry annular space, but fitted with the optional fiberglass reservoir <br />(instead of a monitoring fitting), the drawstring will be positioned within the reservoir. <br />• CONCRETE TRAFFIC PAD <br />='v 7a7.' 7a v. <br />RISER PIPE Monitoring System with Liquid Sensor <br />E-4"ANNULAR Typical configuration for an electronic sensor or <br />SPACE FITTING manual dipstick. <br />1. Use the standard monitoring fitting <br />2. Monitoring cavity can be vented or sealed. <br />DRY ANNULAR SPACE <br />1� LIQUID SENSING PROBE <br />CONCRETE TRAFFIC PAD <br />N <br />Monitoring System with Vacuum and Air Pressure <br />RISER --> <br />PIPE VACUUM OR AIR <br />PRESSURE SENSOR <br />1. Use the standard monitoring fitting. <br />� <br />SPACE FITTING <br />2. Maximum continuous positive air pressure is 3 psi. <br />3. Maximum continuous vacuum is 5 psi. <br />CONCRETE TRAFFIC PAD <br />r <br />F— RISER PIPE Monitoring System with Gasoline Vapor Sensor <br />�-4"ANNULAR Many vapor sensors also include a water sensor. <br />• SPACE FITTING 1. Use the standard monitoring fitting. <br />HYDROCARBON 2. Monitoring cavity can be vented or sealed. <br />VAPOR SENSOR <br />WATER <br />SENSOR <br />