When there is a 10% increase in water usage per year. It was found that for a horizontal rubber chloride water wells for more than 600 mg/l. To move into the town, Songkhla is a 75-metre distance in 10 years.
When the water rose to 10% per year for leading the line well chloride resin with a volume of more than 600 milligrams per liter. Moves to City Municipality, Songkhla, a distance of 75 meters in 10 years.
When the water rose 10% per year. For I found that the chloride rubber water volume than 600 mg / L. Moving into the city of Songkhla municipality is 75 meters in time 10 years.