Constructing Storage Tanks for Potable Water Systems, Fire Protection, Aviation and Motor Vehicle Fuels M & M Tanks, Inc. is a Hawaii-based tank construction contractor building quality liquid storage in the Pacific since 1997. Our client base spans from industrial to municipal to military users and ranges from Hawaii north to Wake Island and west to Guam and CNMI and South to FSM, RMI, Fiji, Samoa and Tonga and East to French Polynesia. We have storage solutions appropriate and unique for each client’s requirements. ​ When it comes to water and fuel storage alternatives, there is no better source for your needs than M & M Tanks. We build quality potable water, waste water, fire control, irrigation and equalization tanks to suit any need. We are Hawaii's and Pacific region's authorized dealer for welded steel tanks, bolted glass-fused-to-steel tanks, bolted stainless steel and epoxy coated tanks, free-span aluminum domes, and corrugated galvanized steel tanks with vinyl liners. We also specialize in underground water and waste water.