Bulk Storage Tanks & Grain Silos | PERMASTORE® Supplying Glass-Fused-to-Steel, Epoxy coated and Stainless Steel tanks and silos. For the storage of drinking water, wastewater/sewage treatment, process water, industrial effluent, … Supplying Glass-Fused-to-Steel, Epoxy coated and Stainless Steel tanks and silos. For the storage of drinking water, wastewater/sewage treatment, process water, industrial effluent, …