Where can I find Sourz^® in Forest Hall?

Sourz can also be found in these cities:

Ashington Blaydon-on-Tyne Blyth Gateshead Hebburn New Herrington Newbiggin-by-the-Sea Newcastle upon Tyne North Shields South Shields Sunderland Washington Whitley Bay invalidcity

You can also find this in Forest Hall:

Confectionery Soft Drinks Cheese Cider Milk Soft Drinks Bread Beer Spirits Confectionery