Test the strength of the tank with water (Hydroatatic Test) at a pressure of 9 kg / cm2-g and test air (Pneumatic Test) at a pressure of 6.0 kg / cm2-g by effluent from the test will be sent to a clarifier left to check quality If the value does not exceed the threshold at Hemaraj Eastern Industrial Estate (Map Ta Phut) set to drain water into the gutter of the estates to enter sewage systems following the central part of the settlement, if the water has exceeded the threshold of estates. Send to rid the company received permission from the government.