Water Tanks In Bigger Buildings

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Big retail or commercial structures like shopping malls and the Melbourne city conference centre use electric pumps to transport water to their storage tanks. Usually, water storage tanks for commercial structures are located at rooftops to make supply easy. However, the size of the water tank that will be installed depends on the occupancy level of the commercial high rise building. These are a few factors that affect how bigger properties use water tanks.

Different Types of Water Tank Capacity for Commercial Structures

Water storage tank manufacturers have experts that implement designs and installation for big commercial buildings. These experts often have the technical knowledge and provide advice for customers. Usually, when engineers and property management professionals make inquiries from the manufacturers of water tanks, they are referred to their technical sales team. Sometimes large shopping centres might have varying requirements for installation and size of tanks. So, it’s important to evaluate and get what suits the client.

When installing 400,000 litres or lesser capacity of water tanks, it’s cost-effective to use a platform like the sand base. Usually, these high-capacity reservoirs are custom built to suit specific requirements. Unlike water tanks that exceed 400,000-litre capacity, this type of is quick and easy to install. Big properties like shopping complexes might need concrete slabs (ring beam base) as ideal platforms if there’s no space at their rooftops.

However, special water tanks that are made from silicon, aluminium, and zinc (Zincalume Tanks) can handle 2 million liters of water. This type of water tanks for sale is designed for industries and commercial organizations. It can hold a large volume of water for a long period before emptying its content. Also, it’s durable, and its superior coating technology can withstand high levels of corrosion. Apart from their various colours, manufacturers use modular design to erect Zincalume tanks. This concept makes it easy to flat-pack the water tank, transport and reassembles it.

Water Tanks Serve Different Uses

Apart from watering flowers and cleaning, big properties such as the corporate event venues in Melbourne supply potable water. They also supply to bathrooms, offices, restaurants, generate electricity, washing equipment, and extinguish fires. Storage tanks are versatile equipment that comes in different capacities for big properties like shopping malls. Usually, malls that have eco-friendly environments often have green areas like lawns. Without a regular supply of water, it might be difficult for commercial property managers to provide service for occupants.

In some instances, commercial water storage systems are used to harvest rainwater. It’s a way of depending on annual rainfall for storage and utilization.  This type of water conservation method can help to reduce of monthly utility bill because the total consumption is split between public water supply system and nature.

Benefits of Harvesting Rain Water for Big Properties

  • It’s an inexpensive and effective method of augmenting the groundwater level within the property’s location
  • It reduces the electricity cost of pumping groundwater, and property managers can be self-sufficient when it comes to supplying water
  • Rain is a natural source of soft-iron minerals and high-quality water
  • There’s a reduction in flooding and soil erosion in urban areas when rainwater is harvested properly
  • Rainwater collection can be channelled to an artificial recharge system for proper filtration.

What Should The Size Of A Big Property’s Water Tank Be?

It might be easy to work out a commercial property’s water usage with its utility bill. Alternatively, you can make estimates with a calculator and seek ways to reduce your utility bill for water consumption. We have shared the benefits of rainwater and how it can augment supply from the public water system. To calculate the size of the tank that your shopping mall needs to store rainwater, find the maximum volume of rainwater that can be collected with this formula.

Harvested Rainwater = Water Catchment Area (ft2) X Rainfall depth (in.) X 0.623 conversion factor. Please consider the rate of evaporation, and other chances of water losses.

It’s often challenging to install large-capacity water tanks at the top of tall buildings. Since gravity can’t force water to flow from the ground to high rise buildings, it’s imperative to use power pumps. Raising water pressure helps it to travel to the overhead tank, downpipes, and taps on all floors. However, the horsepower rating of heavy-duty pumps in municipal water facilities will need the support of an extra surface pump to push up water.

Water Distribution – How Does It Work

It is a well-known fact in the management of commercial properties such as the shopping centre management that there are different water systems in big buildings – fire water and regular water. As part of building regulation codes, builders install fire suppression systems (wet pipe or dry pipe) like sprinklers and hydrants. However, engineers recommend separate electric pumps for respective systems. After pumping water to high rise buildings, it’s distributed to various apartments. We shall consider the following factors to help us understand how water distribution from tanks works in big buildings.

  • Water demand value (litres per day) depends on the building type, population of occupants, and consumption pattern.
  • Evaluate the probable flow demand (litres per minute), and terminal fittings that are suitable for the installation.
  • What is the hot water demand and type of heating system?
  • Consider various fire water components (sprinklers, hydrants, and fire hose reels) that will be installed.
  • What size of the water tank is suitable and type of mounting style
  • Will the structural engineer need to re-design the roof to accommodate the weight of water tanks?

Every water supply system is designed to prevent leakages, achieve suitable water flow rate and pressure. Also, an engineer considers the possibility of what can contaminate potable water, and how indoor fire-fighting facilities can be installed. Usually, high rise buildings are divided into water pressure control zones. Don’t make the error of cross-connecting water pipes between multiple pressure control zones; especially when there’s a central supply system that recalculates hot water.

What Affects Water flow Rate of Overhead Tanks?

Generally, the building codes for high rise structures (which includes but not restricted to: office buildings, retail leasing buildings like malls, and hotels) require water tanks, plumbing fixtures, and appliances to have adequate flow rate. Both water flow rates and pressure are necessary for supplying water. However, there might be wastage of water when the flow rate is too high and poor efficiency of fixtures when the flow rate is too low. The following factors often affect water flow rates.

  • Water Temperature: When water temperatures increase, this condition will raise water pressure and flow rates because the volume of water is proportional to its temperature.
  • Pipe Diameters: Pipes with small internal diameters have low water pressure and flow rate. Don’t take the nominal diameter (DN) rating of pipes as their internal diameter value because pipes that are rated as DN 15 have between 10–18 mm of internal diameter.

Water Pressure

The flow of water can be adjusted by using low-flow outlets. By installing a flow regulator, engineers can maintain constant water flow rates regardless of water pressure. You can also regulate flow rates to prevent splashing taps, and reduce noise in kitchen sink bowls. It’s important to get the right designs before installing water tanks on high rise buildings. With the application of pressure-boosting systems, it’s easy for hydro-pneumatic pressure tanks to maintain their supply pressure. Also, the booster pump sets can receive water from public water mains.

You can either install water tanks on reinforced concrete slabs or compacted bases. This would suit all kinds of materials from plastic water tanks to the sturdier ones. However, these bases must have smooth surfaces and fortified by retaining walls. Generally, PVC pipes are ideal for transporting cold water and they are non-corrosive. Steel pipes might be expensive, but they are suitable and durable for both hot and cold water supply pipes.

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