How to size a soakaway

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How to size a septic tank soakaway

How to Size a Septic Tank Soakaway: A UK Guide


Sizing a septic tank soakaway correctly is essential for the efficient and compliant operation of your off-mains drainage system. Getting it wrong can lead to environmental problems and costly fixes. Here’s everything you need to know about sizing a soakaway, and how “septic tanks uk” can make the whole process easier.

What is a Soakaway?

A soakaway (also called a drainage field) is an underground structure that allows treated wastewater from your septic tank to safely disperse back into the ground. A properly sized soakaway is crucial to prevent pollution and ensure your septic system functions as intended.

How to Size a Septic Tank Soakaway

The ideal size of your soakaway depends on several factors, including:

  • Soil type: The percolation rate (how quickly water drains through the soil) greatly influences soakaway size. You’ll need a formal percolation test to get accurate data.
  • Number of people in your household: The more people using the septic system, the larger the soakaway needs to be.

Calculating the precise size of your soakaway can be complex. That’s why “septic tanks uk” offers convenient and compliant solutions.

Septic Tank Soakaway Kits from “septic tanks uk”

Our septic tank soakaway kits eliminate the guesswork. Each kit is pre-sized based on the number of bedrooms in your property, ensuring septic tank compliance with UK regulations. Your kit includes:

  • Shallow dig, low-profile septic tank: Easy to install and discreet
  • Underground drainage pipes and connectors: Everything you need for hook-up
  • Drainage field crates: For efficient wastewater dispersal

Installing a kit normally takes just 3 hours, offering huge time savings compared to a custom-built system.

Peace of Mind: Approvals and Regulations

All septic tank kits from “septic tanks uk” are fully approved by:

This ensures your installation will pass planning permission requirements and safeguards the environment.

Get Started with

If you’re unsure about how to size a septic tank soakaway, our pre-designed kits provide the perfect answer. We handle the complex septic tank regulations UK requirements so you don’t have to.

Contact us today to discuss your septic tank needs and get a quote for your soakaway kit.