At Manchester PC, we frequently get asked: Should I use a liquid cooler or an air cooler for my PC? As CPUs become more powerful, they also generate more heat, making efficient cooling an essential part of maintaining peak performance. Over the years, our advice on this topic has evolved, largely due to improvements in cooling technology and reliability. However, there are still risks to consider when opting for liquid cooling.

The Risk of Leaks: A Common Issue in the Past

About five to seven years ago, we saw a significant number of liquid-cooled PCs with leaks. These leaks typically occurred in:

  • Pumps – The highest pressure point in the loop, making it prone to leaks.
  • Radiators – Wear and tear over time could lead to cracks.
  • Pipes – Small cracks or improper seals could cause slow drips.

These leaks often started as tiny, almost imperceptible drips, which could go unnoticed for weeks or months. In a standard tower PC, where the motherboard is mounted vertically, leaks from the pump could slowly trickle down onto the CPU socket, motherboard, and PCIe slot, leading to corrosion and component failure. This meant not just a damaged cooler but also potentially a ruined graphics card, CPU, or motherboard—an expensive repair.

Because of these issues, we used to advise against liquid cooling for most users, especially those with high-end builds valued at £3,000 or more. The risk simply wasn’t worth it when high-performance air coolers were capable of handling most cooling needs effectively.

The Evolution of Liquid Cooling

Fast forward to today, and things have changed. The last three to four years have seen major improvements in liquid cooling technology, including:

  • Better Seals and Materials – Reducing the chances of slow leaks.
  • Improved Pump Reliability – Modern pumps last longer and operate more efficiently.
  • Enhanced Manufacturing Standards – Trusted brands now rigorously test their liquid coolers for leaks before distribution.

We are an authorised service centre for be quiet! and work extensively with cooling products, including liquid coolers. The failure rates we see today are significantly lower than what they were a few years ago. If a liquid cooler does fail, it’s usually due to the pump wearing out, much like any other moving part in a system.

Are Liquid Coolers Necessary?

In 2025, liquid cooling is more viable than ever, but it’s still not always necessary. The decision depends on your specific use case:

✅ When Liquid Cooling Makes Sense:

  • Running high-performance CPUs (Intel i9, AMD Ryzen 9, Threadripper, etc.).
  • Overclocking your processor.
  • Building a compact system where airflow is limited.
  • Aesthetic preference for a clean, RGB-lit build.

❌ When Air Cooling Is a Better Option:

  • Using mid-range CPUs (Intel i5, AMD Ryzen 5, etc.) for general tasks.
  • Seeking the longest lifespan with minimal maintenance.
  • Preferring a simpler setup with fewer potential failure points.

Modern high-end air coolers, like be quiet!’s Dark Rock series, can rival the cooling performance of liquid AIOs (All-In-One coolers) while eliminating the risks associated with liquid.

How to Minimise Liquid Cooling Risks

If you decide to go with liquid cooling, here are some best practices to reduce risks:

🔹 Regular Inspections: If your PC has a tempered glass side panel, take a monthly look at the pump, fittings, and pipes for signs of moisture or corrosion.

🔹 Choose Quality Brands: Stick to well-known manufacturers that offer solid warranties (such as be quiet!).

🔹 Secure Mounting: Ensure the cooler is installed properly with no excessive stress on the pipes or fittings.

🔹 Monitor Temperatures: Use software like HWMonitor or MSI Afterburner to track coolant temperatures and pump speeds.

The Verdict: Liquid Cooling in 2025

Liquid cooling has come a long way from its unreliable past, but the risks still exist. While leaks are now rare, they are not impossible. If you are building a high-end rig and want maximum cooling efficiency, a well-installed liquid cooler is a great option. However, if you prefer peace of mind and low maintenance, a high-quality air cooler remains a strong alternative.

At Manchester PC, we are happy to advise on the best cooling solutions tailored to your needs. Whether you’re upgrading your cooling setup or troubleshooting a slow PC, we’ve got you covered. Stay cool, and game on!