Potable Water

Underground Water Storage Tanks

Fiberglass Tanks
Engineering Assistance

Potable Water - Home Storage System

Potable Water - Home Storage System
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Potable Water - Commercial / Industrial Storage System

Potable Water - Commercial / Industrial Storage System
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Potable Water - High Volume Community System

Potable Water - High Volume Community System
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POTABLE WATER (often called Domestic water, Drinking water, or Culinary water) is suitable for human consumption or use in the preparation of food. Darco manufactures fiberglass underground water tanks for potable water storage. Such systems can serve individual homes or an entire subdivision based on the storage capacity requirements.  As a general rule, potable water holding tanks should be sized to store no more than a 30 day water supply to maintain freshness and flavor.

The Residential Storage System illustrated in drawing #1 incorporates 6,000 gallons of domestic water storage and a submersible bottom suction relay pump which delivers water to the hydro-pneumatic pressure tank inside the dwelling served. The pump may be submerged inside the potable water storage tank itself, located in a remote wet well, in the basement of the building, or in a small pump house located above the tank. Choose the pump style and location which best fits your particular water system size and configuration. 

Commercial / Industrial applications often require higher pressure and flow than an internally mounted submersible residential style bottom suction pump can deliver. In such cases, a "wet well" constructed of PVC pipe is installed adjacent to the potable water storage tank and fitted with a higher horsepower center suction deep well style relay pump, as illustrated in drawing #2.

The High Volume Community System illustrates several large fiberglass storage tanks manifolded together to feed a wet well located under the pump house. Well water can be filtered or treated on the way to storage, and then delivered into the community service piping. Large drinking water storage tank systems allow chlorination contact and also provide a low cost fire protection water supply for the fire department.  Fire trucks can draft directly from a suction hydrant located near the tank system as illustrated in drawing #3.

In all 3 illustrations, Darco underground fiberglass tanks provide a potable water supply that is out of sight, cool, secure, and ice free.  There is no ugly above ground high profile structure to detract from nearby real estate value, block the view, or attract vandalism.

Project Showcase

Potable Water picture

Border Patrol / USA & Mexico (California): Underground fiberglass tanks for potable water supply and wastewater storage to be held for treatment / 2 at 10,000 gallons

Larkspur Subdivision (Colorado): Fiberglass underground storage for potable domestic water use in new subdivision / 180,000 gallons

Payton High School (Colorado): Underground fiberglass tank for potable water / 40,000 gallons

Florida Keys / Residential Rain Capture (Florida): Fresh water underground fiberglass tank for individual homes / 4,000 gallons

Sunex International (Florida): Ship to Miami and on to Bahamas / 8,000 gal.

Camp Cumorah (Idaho): Underground fiberglass tank for potable water for church camp / 24,000 gallons

Idaho Fish and Game (Idaho): Campground drinking water underground storage tank / 4,000 gallons

JWG, Inc. (Nebraska): Underground fiberglass tank for well water storage / 4,000 gallons

Indian Interpretive Center (Nevada): Fiberglass water tank for potable water / fire protection for building beyond city water supply / 2 - 30,000 gallon fiberglass tanks

Vermejo Park Ranch (New Mexico): Potable water fiberglass storage tank for guest ranch / 80,000 gallons

National Forests of North Carolina (New York): Potable water fiberglass underground tank to supply remote campgrounds / 2 sites at 2,000 gallons

Development (North Dakota): Potable underground fiberglass storage tanks and underground holding tanks for wastewater / 3 tanks - 10,000; 25,000; and 50,000 gallons

Canyonlands National Park (Utah): Direct bury fiberglass tank for potable water / 30,000 gallons

Highland Construction (Utah): Underground fiberglass domestic water storage for a rural subdivision / 100,000 gallons

Wilson Arch Resort (Utah): Underground fiberglass water tanks storing domestic water for resort / 60,000 gallons

Bridger Lake Campground (Utah): Underground fiberglass domestic water supply / 20,000 gallons

Mount Sterling Campground (Utah): Fiberglass underground domestic water supply / 12,000 gallons

Big Canyon Christian Camp (Utah): Fiberglass underground tanks for domestic water supply / 12,000 gallons

Ken Dee Ranch - Horse barn, riding arena, and guest house (Utah): Underground water storage for potable water and back-up fire protection / 60,000 gallons

Whidbey Island (Washington): Underground fiberglass residential / domestic water supply / 10,000 gal.

Wyoming Department of Transportation (Wyoming): Highway 'Rest Stop' fiberglass underground potable water supply / 8,000 gallons

Big Horn Northern Supply Project (Wyoming): Fiberglass water storage tanks for large domestic water supplier / 2- 40,000 gal.

Teton Science School (Wyoming): Underground fiberglass storage for domestic water supply / 2 - 30,000 gallon fiberglass tanks

Hat Butte Ranch (Wyoming): Residential underground cistern tank for potable water and back-up fire cistern / 20,000 gallons

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