{"id":7569,"date":"2026-02-06T23:22:27","date_gmt":"2026-02-06T15:22:27","guid":{"rendered":"https:\/\/aquarainwater.com\/?p=7569"},"modified":"2026-02-06T23:25:03","modified_gmt":"2026-02-06T15:25:03","slug":"what-is-an-attenuation-tank","status":"publish","type":"post","link":"https:\/\/aquarainwater.com\/es\/what-is-an-attenuation-tank\/","title":{"rendered":"\u00bfQu\u00e9 es un tanque de atenuaci\u00f3n? Finalidad, tipos y cu\u00e1ndo lo exigen las normativas del Reino Unido."},"content":{"rendered":"\n

What Is an Attenuation Tank? Purpose, Types and When UK Regulations Require One<\/h1><\/div>\n\n\n\n

By AQUA Rain Water Solutions | February 6, 2026 | 13 min read<\/p>\n\n\n\n

\"Diagram<\/figure>\n\n\n\n

An attenuation tank is a sealed underground storage chamber that temporarily holds stormwater runoff during heavy rainfall and releases it slowly at a controlled rate into drains or watercourses. Unlike a soakaway, which lets water seep into the ground, an attenuation tank is wrapped in an impermeable membrane and discharges to a network \u2014 making it suitable for any soil type, including clay.<\/p>\n\n\n\n

If you’re planning a new build, extension, or commercial development in the UK, there’s a good chance you’ll need one. Most Lead Local Flood Authorities now require stormwater attenuation as a condition of drainage approval, and that requirement is only getting stricter as Schedule 3 implementation rolls out. We’ve seen this principle make the difference between a \u00a3200,000 flood damage claim and a dry ground floor on a housing development in the Midlands \u2014 the maths behind it is straightforward, but getting the sizing wrong costs real money.<\/p>\n\n\n\n

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