Elevated water storage tanks serve two primary functions: they store water for fire protection and supply potable drinking water to a designated area or community. These tanks utilize gravity to maintain consistent water pressure throughout the system. They are available in various shapes, sizes, and materials designed to meet specific requirements and the distribution needs of the area.
Here are four established benefits of positioning Elevated Water Storage Tanks:
- Enhanced Water Pressure
Placing water storage tanks at higher elevations facilitates the delivery of water with increased force. This principle of physics dictates that water moves in response to gravitational force, resulting in higher pressure as the tank height increases. Studies indicate that each vertical foot of elevation above a hundred feet contributes approximately 0.43 pounds per square inch of pressure.
- Elimination of Pump Costs and Installation
For residential use, stainless steel water storage tanks positioned at sufficient heights can often eliminate the need for a water pump. This setup provides adequate pressure for household plumbing needs and can also serve garden and other outdoor purposes effectively. Avoiding the use of a pump can lead to significant savings in installation and operational costs.
- Prevention of Contamination
Elevating tanks serves a practical purpose by reducing the risk of sediment and foreign object entry into the system. Prolonged sediment retention in water tanks increases the chances of contamination and growth of harmful pathogens. Placing tanks at height helps mitigate these risks.
- Ease of Maintenance Access
Installing tanks above ground level facilitates easier access for routine maintenance tasks. If leaks occur, they are easier to detect and repair promptly. Many tank suppliers, such as Firstank Philippines, provide complementary ladders with their units to facilitate maintenance tasks.
While positioning water storage tanks at the highest level of a structure is not mandatory, they can also be installed at ground level. However, routing water flow through pipelines in such cases may require external assistance.
Choosing an Elevated Water Tank
When picking the perfect elevated water tank, several factors are key: height, construction materials, water capacity, size, shape, and even how well it handles cold weather. A well-designed and installed elevated tank guarantees reliable water flow and pressure throughout your distribution area.
The height of your elevated water tank directly affects the water pressure reaching your community. These towers need to consistently deliver at least 20 psi (pounds per square inch) pressure, but the standard is typically higher, around 60-70 psi. The key is to choose a tank height that maintains this minimum pressure level everywhere in your distribution system.
Size and Capacity
When selecting an elevated water storage tank, it’s crucial to assess both its storage capacity and projected usage. Predicting water demands involves factors such as community growth and emergency requirements, ensuring the tank can adequately meet these needs.
Design and Construction
Engineers must consider several factors when designing water tanks, including intended usage, water quality, required pressure levels, and environmental impact. Material selection and design elements are influenced by soil quality, seismic activity, wind loads, and extreme temperatures of the installation site. Field-erected tanks pose specific challenges that need careful evaluation during the planning phase.
Significance of Cold Weather Resilience
In freezing conditions, elevated water tanks face the risk of freezing, potentially disrupting access to essential water supplies for communities. To prevent freezing, various heating methods can be implemented, such as gravity circulation, steam coils, or direct steam discharge. These measures are essential to maintain continuous water availability during cold weather.
Elevated Water Storage Tank Applications
Apart from municipal water storage, elevated storage tanks provide a dependable solution for a diverse range of other applications, such as:
- Fire protection
- Process water
- Emergency cooling
Elevated Water Storage Tank Maintenance
Elevated water tanks need routine checkups, just like anything else. Regular maintenance ensures they perform optimally and keep your water quality high. Industry standards (like AWWA) and local regulations typically recommend inspections every 3-5 years.
Pros will meticulously examine the tank’s coating, joints, fixtures, surfaces, and foundation. They’re checking for anything that could affect stability or functionality. If they find cracks, leaks, or other problems, they can be addressed before they become major issues like leaks, pressure loss, or even contaminated water.
To prevent sediment buildup and potential contamination from damaged parts, it’s wise to regularly test your water quality.
Our friendly and experienced customer service team is here to answer any questions you have about elevated water tank maintenance. We offer reliable services in Houston, Texas and Longbeach, California.
Call NFPA 25 Inspections LA by American Tanks at +1 800 656 0167
Or email at info@nfpa25inspections.la
