Installing a 350 PE Wastewater Treatment Plant | GRAF OneAdvanced System at Lawndale Country Park - GRAF UK

Installing a 350 PE Wastewater Treatment Plant | GRAF OneAdvanced System at Lawndale Country Park

Last week, five wastewater treatment tanks were delivered to Lawndale Country Park in Lancashire, forming part of a major site-wide upgrade serving 76 holiday lodges and 2 residential properties.

In this video, Jamie Rolph (The Rainwater Guy) takes you on-site to explore the installation of a 350 population equivalent (PE) communal wastewater treatment system, designed to meet a high discharge standard of 10:20:10 for BOD, suspended solids, and ammonia.

You’ll get a closer look at how the GRAF OneAdvanced wastewater treatment plant works, including its multi-tank setup, aeration turrets, airlift pipework, sludge return, and the practical steps involved in connecting air hoses and cabinet controls.

This is a great insight into how larger holiday parks manage wastewater efficiently while meeting strict environmental requirements.


Posted by Luke Quentel, on February 16, 2026.

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