At Canwest Tanks & Ecological Systems Ltd. we manufacture tanks from polyethylene plastic and filament-wound fiberglass for use as portable water storage, rain water collection, chemicals storage, fire protection, septic and sewage holding tanks and sewage treatment plants. Canwest Tanks & Ecological Systems Ltd. is a B.C.-owned and -operated company. Our production plant is located in Surrey BC, where we have 27,000 square feet of manufacturing facilities under one roof, located on a 25 acre industrial site. Call us and we'll help with your project.