a water management system includes a series of corrugation couplers adapted for compressibly connecting and detaching liner sections end to end . each corrugations coupler is included in successively formed corrugation segments . each corrugation segment includes two adjacent corrugations , a leading corrugation , and a trailing corrugation . the leading corrugation is formed with a substantially triangular cross - section having a rounded apex ; the trailing corrugation in a corrugation segment is formed with a substantially frustoconical cross - section having a height less than the height of the extended corrugation . also included is a connector for contributing to interconnecting liner sections end - to - end . a compressibly resilient gasket is included for contributing to sealing the liner sections . this abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure , but this abstract is not to be used to interpret or limit the scope or meaning of any claim .