Issue Date:  October 13, 2006
Revision Date:  September 2, 2008

Estabrook EZY CHEK Systems 
(originally listed as Horner EZY CHEK)

EZY-Chek Manual Line Leak Detector (for Flexible Pipelines)



Leak rate of 0.1 gph with PD = 99.8% and PFA = 0.2%.

Leak Threshold

0.05 gph. 
A pipeline system should not be declared tight if the test result indicates a loss that equals or exceeds this threshold.


Gasoline, diesel, aviation fuel, fuel oil #4.


System tests flexible pipelines. 
Tests are conducted at 150% operating pressure. 
Mechanical line leak detector must be removed or manually isolated from pipeline for duration of test, or if testing is to be conducted with mechanical line leak detector in place, check valve in pump must be manually closed.

Pipeline Capacity

Maximum of 101 gallons (example: 275 feet of 3 inch line).

Waiting Time

None between delivery and testing.  None between dispensing and testing.

Test Period

Under ideal conditions, 30 minutes; actual test time will depend on line size and temperature conditions at the site.
Data are collected every 15 minutes. 
Three consecutive consistent readings are required for a valid test.
Data from the evaluation suggests that the actual minimum test time for a line this size is 2 hours.
Test data are acquired and recorded manually. 
Manual calculations performed by the operator on site.


No temperature sensors used. 
No calibration required. 
System must be checked annually in accordance with manufacturer's instructions.
Technicians must be certified by the manufacturer prior to using this equipment, and recertified every two years.


Estabrook EZY CHEK Systems

Evaluator:  Ken Wilcox Associates

1505 Woodside Ave.

Tel:  (816) 443-2494

Essexville, MI 48732

Dates of Evaluations: 07/09/92, 09/05/06

Tel: (989) 891-9868


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Equipment should be installed and operated in accordance with all applicable laws and regulations.  For full details, please refer to our expanded "DISCLAIMER" page.