Pacific Southwest Industries (PSI) is a trusted provider of engineering services and pump systems to the plumbing and construction community in Rancho Cucamonga, CA. With over 40 years of experience, they specialize in designing and delivering custom-built pre-packaged lift stations, pressure booster systems, and rainwater harvest systems for various commercial and residential applications.
Known for their exceptional craftsmanship and extensive knowledge, PSI is the go-to company for all pump needs. Their courteous and well-informed staff, along with their prompt and efficient service, have made them an invaluable resource for engineering firms and contractors throughout southern California.
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