The DEMO version only includes 4 pages:
http://septictank-supplies.co.uk
http://septictank-supplies.co.uk/collections/sewage-treatment-plants.html
http://septictank-supplies.co.uk/pages/information-centre.html
http://septictank-supplies.co.uk/collections/spherical-septic-tanks.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page