11-17
11 CSLD Troubleshooting Actual CSLD Test Problems Analyzed
ANALYSIS OF RATE TEST (IA52)
The average leak rate (AVLRTE) is -0.259. The average leak rate is uncompensated so excessive compensation is
not an issue. This leak rate is not excessively high so blender/pump sense issues are probably not involved.
The tank label is SUPER so most likely it is not manifolded.
The DATE is recent so results are up to date.
The maximum number of tests is 80 and because C1 = 79 there are more than enough tests.
SOLUTION
The float was stuck in the riser. A collar was installed on the probe to prevent recurrences of this problem.
CSLD PROBLEM 2 - MANIFOLDED TANKS 1 AND 2 ARE FAILING
Reports I201, I51, IA52, and I752 were collected for analysis.
DIAGNOSTICS
I20100
STATION HEADER INFO
MAY 21, 2000 10:29 AM
TANK PRODUCT VOLUME TLC VOLUME ULLAGE HEIGHT WATER TEMP
1 REGULAR 2311 2303 3705 39.21 0.0 65.2
2 REGULAR SLAVE 3276 3266 4746 41.07 1.6 64.1
3 MIDGRADE 4378 4365 5774 42.81 0.0 64.4
4 PREMIUM 2547 2548 7605 28.68 1.3 59.7
IA5200
JUN 11, 2000 12:00 PM
CSLD DIAGNOSTICS: RATE TEST
TK DATE LRATE INTVL ST AVLRTE VOL C1 C3 FDBK ACPT THPUT EVAP RJT
1 9608220320 -0.834 28.4 2 -0.809 7909 58 30 20.3 21.7 32.37 0.000 0
2 9608220320 -0.834 28.4 2 -0.809 7909 58 30 20.3 21.7 29.56 0.000 0
3 9608220445 -0.008 25.8 1 0.005 4400 67 18 30. 21.7 21.23 0.000 0
4 9608220402 0.005 22.3 1 0.005 1893 80 13 45.0 44.8 24.45 0.000 0
I75200
JUN 11, 2000 10:30 AM
LINE LEAK TANK ASSIGNMENT
LINE LABEL TAN
1 PREMIUM 4 Line 1 should be labelled Regular and assigned to tank 1
2 MIDGRADE 3 Correct as is
3 REGULAR 1 Line 3 should be labelled Premium and assigned to tank 4
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