If you already have an existing supply to which you wish to connect the refill point, then a Regulation 5 Notification form is required for alteration of existing supply.
Go to the Plumbing work – notifications.
Download the Regulation 5 notification form. Answer all the questions in full, include the meter number of the existing supply and what it is currently used for.
Return the application form to Regulation5.Notification@wessexwater.co.uk.