Pressure Tanks vs Storage Tanks – Which One Does Your System Need?
Introduction
If you’re setting up or upgrading a water system, one of the most common questions is: Do I need a pressure tank or a storage tank?
At first glance, they might look similar—they both hold water. But their purposes, designs, and benefits are very different.
Choosing the wrong tank can lead to wasted money, inefficient water delivery, or unnecessary maintenance. At SH Pressure Tank Singapore, we’ve helped homeowners, businesses, and industrial clients select the right tank for years. In this blog, we’ll break down the key differences, pros and cons, and how to decide which one is best for you.
What is a Pressure Tank?
A pressure tank is designed to regulate water pressure in your system. It stores water under pressure and delivers it instantly when a tap is opened.
Key Functions of a Pressure Tank:
Maintains steady water pressure
Prevents short cycling of pumps (on/off too frequently)
Extends pump lifespan
Provides a small water reserve for immediate use
Best for: households, restaurants, and small commercial systems where consistent pressure and pump protection are essential.
What is a Storage Tank?
A storage tank, sometimes called a holding tank, is designed to store large volumes of water. It doesn’t maintain pressure on its own—instead, a separate pump is needed to deliver pressurized water to your system.
Key Functions of a Storage Tank:
Provides bulk water storage
Acts as a backup during low supply periods
Ensures water is available even if source yield is low
Best for: properties with low-yield wells, inconsistent supply, or high water demand at specific times.
Pressure Tank vs Storage Tank: Key Differences
Feature | Pressure Tank | Storage Tank |
---|---|---|
Purpose | Regulates water pressure | Stores large volumes of water |
Pump Usage | Reduces pump cycling | Requires separate pump to pressurize water |
Capacity | Usually smaller (20–150 gallons) | Larger (100–10,000+ gallons) |
Maintenance | Low (check air charge, replace bladder if needed) | Higher (sediment cleaning, pump controls, valves) |
Space Required | Compact, easy to install | Needs significant space |
Cost | Lower upfront, saves long-term pump costs | Higher upfront + maintenance cost |
Pros and Cons of Pressure Tanks
Advantages
Compact size, fits in small spaces
Protects pump and saves electricity
Low maintenance
Consistent pressure improves user comfort
Disadvantages
Limited storage capacity
Not suitable if source water is inconsistent
Pros and Cons of Storage Tanks
Advantages
Stores a large amount of water
Provides backup supply in emergencies
Useful for low-yield wells and irregular water supply
Disadvantages
Requires additional pump and controls
Higher maintenance (sediment cleaning, leaks, float switches)
Takes up significant space
Which One Do You Need?
You should choose a pressure tank if:
Your water source is stable and high-yield
You want to protect your pump from rapid cycling
You prefer a compact, low-maintenance solution
You need consistent pressure for showers, kitchens, and appliances
You should choose a storage tank if:
Your water supply is inconsistent or low-yield
You need a large backup reserve
You run a facility (like farm, factory, or hotel) with high peak usage
You don’t mind extra space requirements
FAQs
Q: Can I use both a storage tank and a pressure tank together?
A: Yes. Many systems use a storage tank for bulk water supply, then a pressure tank with a booster pump to ensure steady delivery.
Q: Which lasts longer, pressure tank or storage tank?
A: Stainless steel pressure tanks can last 10–15 years. Storage tanks last long too but often require more maintenance.
Q: Do I need a pressure tank for city water?
A: Usually no, unless pressure is unstable. But many businesses still install one to protect pumps and ensure consistency.
Conclusion & Call to Action
Pressure tanks and storage tanks are both valuable—but for very different reasons.
If you need consistent water pressure and pump protection, a pressure tank is best. If you need large water reserves or deal with low-yield wells, a storage tank is essential.
At SH Pressure Tank Singapore, we supply both, with options ranging from compact bladder tanks to industrial-grade stainless steel storage solutions.
Call us at 6784 1024, WhatsApp 9224 6888, or email contact@shpressuretank.com to find the perfect tank for your needs.