These tanks serve as appropriate and convenient space-saving solutions for the storage of water under the ground, which protects it from environmental elements while leaving space on the surface for other uses.
If you want a solution for residential water storage, industrial or agricultural needs, then underground tanks can be the most favorable option compared to traditional overhead tanks. This blog will take you through what underground water storage tanks are, their types, benefits, materials, installation process, and maintenance tips.
What is an Underground Water Storage Tank?
This most commonly used underground tank stores water below the Earth's surface for various uses such as irrigation, drinking, fire fighting and rainwater harvesting. Such tanks come in a specific design that can withstand underground pressures and are mainly constructed of materials such as plastic (HDPE), concrete and steel.
Range of capacities can start from hundreds of liters and run into a few thousand liters. These tanks find application in residential, commercial and industrial sectors.
TYPES OF UNDERGROUND WATER STORAGE TANKS
Here are the common types based on materials:
1. Plastic (HDPE) Underground Tanks
- These tanks are light-in-weight and easy to install.
- Resistance from corrosion and most chemicals.
- Inexpensive and ideal for small and medium amounts of water storage.
2. Concrete Tanks
- Very strong and long life.
- Suitable for above-ground storage of large capacity.
- These can cast at site or may prefabricated.
- This needs professional installation.
3. Fiberglass Tanks
- These have resistance to corrosion and are lightweight.
- They are non-reactive with most chemicals.
- They are high cost but very durable.
4. Steel Tanks-
- Tough and long-lasting.
- Such tanks generally find use in industrial applications and fire protection.
- Protection from rust requires protective coating.
Benefits of Using Underground Water Storage Tanks
1. Saving Space
One of the biggest advantages is that these tanks are out of sight, and they can also free up some precious space on your property for gardens, driveways, or buildings.
2. Temperature Maintenance
As the tanks are buried underground, they are insulated from the extreme weather conditions that make water cool and prevent the growth of algae.
3. Longer Life
An underground tank is protected from the sun, weather, and mechanical damages; thus, it could last longer in operation compared to an above-ground tank.
4. Enhances Aesthetics
Such property looks neat and beautified as there is no visible structure outside the property.
5. Security
Being buried, there is less chance of vandalism, accidental damage, and theft.
6. Environment-Friendly Water Solutions
These tanks are mainly used for urban rainwater harvesting, which helps reduce dependence on municipal supply systems and hence reduces water bills.
Application of Underground Water Tanks
● Use In Residential Areas
Used to store drinking water, rainwater, or for flushing and irrigation in greywater recycling systems.
● Use In Commercial Areas
In offices, hotels, and hospitals, these tanks are usually used for backup water-storage facilities, fire protection systems, and sanitation systems.
● Use In Industries
Factories use underground tanks to contain processed water, which is a fire protection system.
● Use In Agriculture
Collecting rainwater for irrigation during dry seasons is done by farmers.
Key Considerations Before Construction
Here are the key considerations before erecting any underground water tank:
1. Soil Type
Stability and soil types greatly affect excavation and tank durability. Clay or rocky soil may require reinforcing.
2. Water Table Level
Where the water table is high, anchoring would be required to prevent floating and also for a certain uplift pressure.
3. Tank Size
You should estimate your daily water consumption of the tank and the possible future water needs.
4. Access Points
There should be easy access for cleaning, inspecting, and maintenance.
5. Permissions and Regulations
Local municipal regulations or building codes must be checked regarding underground water Storage tank installation.
The Installation Steps of Underground Tanks
Step 1: Site Selection
Pick an area with good drainage and few underground obstructions.
Step 2: Excavation
Excavate a pit appropriate to the dimensions of the tank. The base should be firm and level.
Step 3: Base Preparation
Base will also be prepared by providing sufficient sand or concrete on the base.
Step 4: Tank Placement
Use different kinds of machinery to put in the tank slowly and gently, in a level way.
Step 5: Plumbing Connection
Connect inlet, outlet, overflow, and drainage pipes with proper fittings.
Step 6: Backfilling
Fill up the space next to the tank with sand or soil to brace it.
Step 7: Final Setup
Install the cover and access lids in a way that future inspection and maintenance will not be inevitably cumbersome.
Maintaining Tips for Extravagant Life
Regular Inspection: Check for leaks, cracks, or wear and tear twice a year.
Periodic Tank Cleaning: Every 6 months to 1 year.
Filter and Inlet Checks: Filters should be cleaned, and inlet pipes checked for blockages.
Water Quality Inspection: If the tank is carrying drinking water, regular tests must be done.
Conclusion
An underground water storage tank is a wise investment for securing water in the extended term, more so in an urban setup or areas prone to water scarcity. It has many advantages from occupying less space and helps keep water in good quality. For a homeowner, businessman, or farmer, a listed underground tank is perhaps among the most economical and eco-sustainable options for providing for water needs.
As water conservation comes on the world agenda, having a secret yet sure way of profusely storing water is no longer an option: it is a must-have!
