Where can I find Sourz^® in Maghull?

Sourz can also be found in these cities:

Birkenhead Bootle Clock Face Haydock Huyton Liverpool Newton-le-Willows Rainhill Runcorn Saint Helens Speke Wallasey Whiston Widnes invalidcity

You can also find this in Maghull:

Cheese Cider Milk Soft Drinks Bread Beer Spirits Confectionery Wine Tobacco