In January 2008, the NEC passed (680-26©) requiring pool water bonding. The Water Bonder was developed in Haydenville, MA by an electrician. The WATER BONDER I was designed for above ground pools, and will work on in-ground pools. The WATER BONDER II was designed for hard pipe installations, if needed. Call us today to learn more about pool water bonding and other accessories for your pool.