A chance to peek inside a water treatment works

Ever wondered what happens to all the dirty water you flush down your toilet or rinse down your sink? Here's your chance to find out!

Welsh Water are opening a number of their Wastewater Treatment Works for the day to show customers what they do to clean their waste water and make sure is safe to return to our rivers and seas.

On Friday 2nd November, Welsh Water will be opening its treatment works in Cardiff, Pen-y-bont, Llanberis, Mold, Pembroke Dock and Hereford for local residents. The event aims to show people the crucial role the works plays in protecting public health and keeping the local environment clean and safe.

Here are some details of facilities across the country:

Pen-y-bont Wastewater Treatment Works

Portobello, Ogmore-By-Sea, CF32 0QP


Llanberis Wastewater Treatment Works

Llanberis, Caernarfon, LL55 4TY


Cardiff Wastewater Treatment Works

Tide Fields Road, Rover Way, Cardiff, CF24 2RX


Mold Wastewater Treatment Works

Bromfield Lane, CH7 1HA


Pembroke Dock Wastewater Treatment Works

Fort Road, Pembroke Dock, SA72 6SX


Rotherwas Wastewater Treatment Works

Beech Lane, Hereford, HR2 6FG

If you fancy taking a look you can visit the treatment works between 10am and 2pm to see what the not-for-profit company does to keep things flowing freely. Guided tours of the works can be pre-booked by emailing Welsh Water on yctw@dwrcymru.com

Ceri Gillett

Ceri is a seriel entrepreneur, overthinker and occasional wine drinker.

Most often found in the Monmouthshire countryside with Fred (2.5 years). Likes Rap and Red nails in no particular order.