Watermaker

We are trying to get service and/or parts info for our ASC desalinator model 029-014----it's a watermaker that produces 20 gallons of fresh water an hour. If anyone knows where we can get this info please help. We hear the Sea of Cortez has no water available and down in Mexico they charge .25- $1 a gallon for potable water, so we need to be able to make our own.