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Section C - Hydrostatic Monitor (for use with Double Wall Tanks Only) HYDROSTATIC MONITORING C3. RESERVOIR FLUID HEIGHT • ADJUSTMENT C1. PREPARATION ♦ Add brine to the reservoir until the reservoir fluid level ♦ Tanks with hydrostatic monitoring systems normally ar- matches the f lowing table values: rive with monitoring fluid installed in the annular space Liquid Level Liquid Level and some fluid in the reservoir. Tank Measurement (L) Measurement (L) ❑ After installation,the fluid level in the reservoir must Size When Tank is When Tank is be filled to the proper level. Empty Full (1 M and less) 5" 8" ❑ Buckets of brine are supplied with the tank for this ' (over 1M), 6' 3-1/2" 5" purpose. 8' 3-1/2" 5" 10' ♦ If tank has reservoir installed,and arrives without moni- (10M, 12M, 15M 3-1/2" 5-1/2" toring fluid pre-installed,the annular space can be filled 10' (20M) 4" 6-1/2" with monitoring fluid after the tanks have been placed 10' (25M, 30M) 4-1/2" 8-1/2" in the excavation. 10' (over 30M) 4" T' ❑ Provisions must be made to access the reservoir for .CONCRETE TRAFFIC PAD brine filling and venting the air from the annular space at the end of the tank opposite the reservoir. ❑ Contact Tank Technical Support for instructions. RISER PIPE CAP , AND FITTING W/VENT RISER PIPE FRP RESERVOIR SENSOR C2. JOBSIT SAFETY PRECAUTI S RESERVOIR BRINE LIQUID HIGH LEVEL ALARM f LEVEL(L)�� LOW LEVEL ALARM DOUBLE WALL TANK Always wear safety glasses and protective clothing when mixing or handling any antifreeze solution. ♦ The brine(non-toxic)is a solution of 30%calcium chlo- ride in water with a biodegradable green tint and a freeze point of -40°F. ♦ If any of the following accidents occur, quickly take the steps listed. ♦ Propylene glycol (food grade) may also be used to ad- just the reservoir fluid level. Based on expected tem- ♦ Contact with eyes (may cause minor eye injuries). peratures, the concentration should be as follows: • Promptly flush eyes with plenty of water for at least Freeze % Glycol Mixture 15 minutes. Protection with water Brine • Get medical attention. 20°F 20% N/A 0°F 30% N/A ♦ Contact with skin (may cause minor skin irritations). -20°F 40% N/A • Promptly flush skin with plenty of water. -40°F 50% Premixed' ♦ Ingestion (may cause gastrointestinal irritation or ul- 'As supplied by Containment Solutions ceration). • Induce vomiting (if swallowed). C4. RESERVOIR ALARM ACTIONS • Immediately consult a physician. If the reservoir sensor indicates a high or low level alarm, ♦ Spillage(may cause surfaces on which people walk to it is necessary to first determine that the alarm is not the remain wet longer). result of an incorrect initial fluid level setting. • Flush area with plenty of water. ❑ Remove the sensor. ❑ Test the sensor for proper operation. ❑ Reset the fluid level in the reservoir by adding or removing fluid as indicated in section C3. ❑ Reinstall the sensor. NOTE: If a second low or high level alarm occurs, contact Containment Solutions Field Service. 18