Introduction to the Pumplus Well Tank ｜Aquasky

A pressure tank is a general term for a vessel designed to hold liquids or gases under pressure. Depending on their specific applications, these tanks are referred to by various names across industries. In this article, we will focus on residential pressure water booster systems, where they are commonly known as Well Tanks or Sanitary Water Tanks.

1. Introduction to the Pumplus Well Tank

The Aquasky PumPlus Pressure Tank is an indispensable part of residential pressurized water systems, providing water pressure at a consistent level. The tank stores supplemental water between the diaphragm and liner, and the pressurized air chamber creates a supply circle. This innovative design significantly reduces the frequency of motor startups, maintaining steady system pressure and enhancing the efficiency of household appliances such as dishwashers and washing machines. It also ensures a strong water flow for showering and bathing.

Designed as an energy-saving solution, the PumPlus pressure tank requires no maintenance and, when paired with a properly sized pump, provides reliable and long-lasting service. This system not only minimizes energy consumption and protects against water hammers but also stabilizes water pressure to effectively meet daily needs.

Aquasky's commitment to quality and efficiency is embodied in the PumPlus series, which exemplifies the best in diaphragm-type pressure tank technology, offering a practical solution for managing residential water systems.

2. Design and Features of the Pumplus Well Tank

Constructed from cold-rolled carbon steel, the Pumplus Well Tank is built to withstand high pressures and harsh environmental conditions, making it ideal for for coastal areas prone to corrosion. With capacities ranging from 1 to 500 liters, it meets a variety of residential system sizes and requirements.

* Material and Construction:

The study cold-rolled carbon steel exterior of the tank offers excellent resistance to a wide range of atmospheric environments and corrosive media, ensuring durability and reliability in potable water systems.

* Connector Design:

To enhance tank adaptability and strength, the Pumplus Well Tank incorporates three types of stainless steel connectors:

* Male Straight Connector: Used on smaller and horizontal tanks for straightforward attachment to plumbing systems.

* Reinforced Male Connector: Features a reinforcing plate that increases the welding circumference by 50%, enhancing the strength and durability of the connection.

* Elbow Female Connector: Designed for medium and large tanks, this design features a side opening that facilitates easier pipe installation, improving the installation process.

* Internal Structure:

Inside, the tank is divided by a flexible rubber butyl diaphragm into two main chambers: the Water Chamber and the Air Chamber.

* The Water Chamber: Equipped with a corrosion-resistant propylene (PP) liner that molds to the tank shell's shape, preventing water contact with the steel shell and ensuing corrosion. It features a type 304 stainless steel threaded outlet for seamless connection to the water supply.

* The Air Chamber: Sealed and pre-charged with nitrogen to enhance stability and reduce maintenance needs, featuring an air valve for crucial pressure adjustments.

* The diaphragm is the only moving part, dynamically adjusting to changes in water volume to maintain consistent pressure and prevent water logging.

3. How Pumplus Works Inside a Pump System

In a pump system not equipped with a pressure tank, water is not very compressible, and pipes can only store a small amount of water. As a result, when you open a tap, the pressure drops quickly, leading to minimal water output. At this point, the pressure falls to the "on" setting of the pressure switch, prompting the pump to activate and start pumping again.

Integrating a pressure tank into a pump system significantly enhances its operation and extends the pump's lifespan by managing water pressure more efficiently. The tank stores water under pressure, operating as follows:

* As water is drawn from the well and pumped into the tank, it compresses the air in the upper part of the tank, increasing the internal pressure. When this pressure reaches its maximum limit t(ypically 50 to 60 PSI), the pump stops pumping water, maintaining pressure in the system.

* When water is demanded - such as opening a faucet - the compressed air in the air pressure zone is released. This air pressure deflates, pushing against the rubber diaphragm in the tank and expelling water through the plumbing system. Once the water level drops to a certain level and the air pressure in the tank drops to a pre-set minimum (typically 30 to 40 PSI), the pump reactivates to refill the tank.

* When the tap shuts, then the water stops flowing and the pressure in the system builds. When the pressure reaches the “off” setting of the switch or controller, then this turns the pump off and the pipes remain pressurized.

The tank's air pressure and water volume are controlled by a pressure switch, which has preset high and low pressure thresholds.

This system reduces the frequency of pump cycling, which is crucial for preventing wear and tear on the pump and saving electricity. By buffering the pressure and storing water in advance, the tank ensures a steady supply and reduces the stress on the pump, which is especially important for systems where pumps are not designed to start frequently, such as submersible bore pumps.

Picture 1: The work of the pressure tank within a system

 

4. Benefits of Using Pumplus Well Tanks

Pumplus Well Tanks are expertly designed to boost the efficiency and longevity of water systems, providing several key benefits. These tanks store pressurized water, significantly reducing the frequency of pump cycling, which not only extends the pump’s lifespan but also conserves energy and lowers utility costs. This feature also improves battery life in systems where applicable. The tanks ensure a consistent water flow and pressure, crucial for both residential comfort and industrial applications. Additionally, they offer protection against water hammers, which can cause sudden and harmful pressure changes, thus safeguarding your plumbing infrastructure. With a Pumplus Well Tank, you gain instant access to well water without needing to manually activate the pump, enhancing operational convenience and reducing the mechanical strain on your pump.

By integrating a Pumplus Well Tank into your system, you not only safeguard the mechanical integrity of your pump but also enhance the overall functionality and efficiency of your water supply system, ensuring it operates smoothly and quietly.

5. Pumplus Pressure Tank Models by Aquasky

* In-line Models

Available sizes: 3, 8, 12, 18, 24 liters

These models are typically installed directly in the main water supply line and feature a 1” connection, making them ideal for seamless integration into residential systems.

Picture 2: The Installation of Pumplus in-line model

 

* Vertical Stand Models

Available sizes: 40, 60, 80, 100, 120, 130, 160, 200, 240, 300, 325, 450, 500 liters

* Tanks ranging from 40 to 120 liters come with a 1” connection and a plastic base, suitable for moderate residential use.

* Larger sizes from 130 to 325 liters include a 1-1/4” connector and plastic base, designed for extensive residential or light commercial applications.

* The largest tanks, 450 and 500 liters, are equipped with a 1-1/4” connector and an iron support base, ideal for commercial settings requiring substantial water capacity.

Picture 3 and 4: The Installation of Pumplus Vertical Stand Models

 

* Horizontal Models

Available sizes: 18, 24, 40, 60, 80, 100 liters

These are equipped with a 1” connection and a plastic pump stand, providing flexibility and durability for various installation environments.

Picture 5: The Installation of Pumplus Horizontal Models

 

6. Methods for Choosing the Correct Size of Pumplus Pressure Tank

Choosing the proper size for your Pumplus pressure tank is crucial to prevent premature pump failure and ensure efficient system operation. Here are the detailed steps and considerations:

* Residential Capacity Based on Drawdown Capacity:

* Determine Flow Rate: Measure how many liters per minute your pump produces.

* Calculate Minimum Runtime: Typically, one minute is sufficient. Multiply the flow rate by the minimum runtime to determine the drawdown capacity, ensuring the pump operates efficiently without frequent cycling.

The formula: Flow Rate (LPM) x Minimum Runtime (1 minute) = Drawdown Capacity

For example: 60 LPM flow rate x 1 = 60 liters drawdown capacity.

* Set Pressure Switch: The pressure switch setting is the pressure at which the pump turns on to fill the tank up, and the pressure at which the pump shuts off, knowing the tank is full. Standard settings range from 2.07/3.45 bar to 2.76/4.14 bar, where the first number is the cut-in pressure and the second is the cut-out pressure. This setting significantly impacts the drawdown capacity and system efficiency.

* Residential Capacity Based on Fixture Count:

The capacity of the pump system in gallons per minute (GPM) should equal the number of fixtures in the home. This must take into account all use for the kitchen, bath, appliances, outside irrigation, a pool, and special fixtures, such as a hot tub. In this model, modern home with two bathrooms (three outlets each), kitchen sink, dishwasher, washing machine, laundry tub, and two outside hose outlets would require a capacity of 12 gallons per minute, based on the 12 fixtures or outlets.

Aquasky’s experts suppose each water faucet flows out 10 litres of water each time, so customer just needs to know the number of water faucet inside the water system, and they can select a correct size pressure tank.

40-60/60-80 Pressure switch		Water usage volume
The number of Water faucets	Model	Liter per minute	Model
1 to 4	APT-40	20L	APT-40
5 to 6	APT-60	30L	APT-60
7 to 8	APT-80	40L	APT-80
9 to 10	APT-100	50L	APT-100
11 to 13	APT-130	65L	APT-130
14 to 16	APT-160	80L	APT-160
17 to 23	APT-235	120L	APT-235
24 to 30	APT-305	150L	APT-305

Table 1: Residential Capacity Based on Fixture Count

 

* Using Aquasky Selection Tool

Please link to the following AQUASKY website:

https://aquaskyplus.com/sizing.php

Enter demand figures, AQUASKY will help you calculate the proper size pressure tank.

 

7. Installation Process

Installing an Aquasky Pumplus Well Tank is a critical step in ensuring efficient operation and extended longevity of your water system.

Start by removing any existing equipment such as old steel galvanized tanks, air volume controls, and plugging or removing bleeder and snifter valves. After unpacking your new tank, begin the initial setup by removing the air valve cap and using a standard tire pressure gauge to check and adjust the tank’s pre-charge pressure. This should be set to 2 PSI below the pump’s cut-in pressure setting, ensuring adjustments are made when the tank is empty and the system pressure is at 0 PSI to avoid inaccuracies. Typically, Pumplus tanks come with a preset cut-in pressure of 30 PSI, so adjust the pre-charge to 28 PSI. Consult your pump’s documentation for specific settings, often found under the pressure switch cover.

Pre-charge (PSI)	Cut-in (PSI)	Cut – out (PSI)
18	20	40
28	30	50
38	40	60

Table 2 : Operating pressures for specific adjustments.

 

Once adjusted, re-secure the air valve cap tightly. Choose an installation site that minimizes risk in the event of leaks and provides adequate drainage, making sure the location’s flooring is level. When making pipe connections, ensure that the pipe size from the tank matches that from the pump to the house, and follow local or state plumbing codes. Refer to the included installation diagram (from Picture 2 to Picture 6) for further guidance. After all connections are secure, prime the pump and restore power. Finally, check all joints to ensure they are airtight, preventing any leaks and guaranteeing system integrity. By carefully following these steps, you will successfully install your Pumplus Well Tank, optimizing its performance and enhancing the durability of your water pressure system.

8. Maintenance and Longevity

Aquasky Pumplus pressure tanks are built to last, but their lifespan greatly depends on proper maintenance and system setup. The longevity of these tanks is influenced by two main factors: the inherent quality of the tank and the suitability of its size and settings for the specific system.

Under typical conditions, Aquasky Pumplus pressure tanks are designed to last about 5 years. With optimal care and ideal water conditions, high-quality models can extend up to 8 years or more. In systems where the water is consistently clean and the tank is correctly sized, the lifespan can reach an average of 10 years.

Here are some tips on how to maximize the lifespan of your pressure tank:

* For optimal performance, it is essential to ensure the tank is properly sized and configured for your system to efficiently handle water demand and minimize wear and tear.

* Regularly monitoring and managing water quality is also crucial, particularly in coastal areas where higher salt content can accelerate corrosion. Installing a filter system can help mitigate damage from sediments like sand or small rocks that might erode the diaphragm over time, potentially leading to leaks.

* To further extend the tank’s life, reduce the frequency of pump cycling to prevent mechanical strain and quick wear of the diaphragm. Regular inspections of the diaphragm and adjustments to the tank’s pre-charge based on water usage or system changes are vital.

9. Conclusion

The Pumplus Well Tank exemplifies the advantages of using a high-quality pressure tank in any pressurized water system. With its sturdy design, efficient operation, and potential for energy savings, it represents a wise investment for ensuring reliable and effective water pressure management.

For more information of Aquaksy Pumplus well tank, you can click website:

https://aquaskyplus.com/PUMPLUS.php

Or you can email to us: [email protected]