Please select the Preferred document format:

Download Word Format

Download PDF Format

Please complete the following steps to submit the application:

1. Download the form

2. Follow the guidance in Section 2 of the application form for which sections need to be completed

3. Once the relevant sections of the form are completed:

  • Insert a JPEG image of the signatories signature in section 12.


  • Save the file as a PDF.
  • Print the PDF.
  • Sign in the declaration by the authorised signatory section.
  • Scan the full document and save as a PDF.

4. (a) If you have an existing “My Account” with Castle Water, please log in to your account and then follow this link and complete the form.

(b) If you do not have an existing “My Account” with Castle Water please follow this link and complete the form.

By default we will advise the Wholesaler to contact yourselves via email or telephone at any time of the business day. Should you have a specific preference for contact method or time (morning/afternoon) please advise.

Please note this is a chargeable process, with fees imposed by the respective Wholesaler for the application.

Please be aware that once consent is granted there may be a further charge from the Wholesaler relating to the actual discharge. This charge will not be quantifiable until raised by the Wholesaler.

You should not begin discharging Trade Effluent until you have received a valid discharge licence; It is a criminal offence under the Water Industry Act 1991 to make a Trade Effluent discharge to the public sewer without the permission of the appropriate sewerage undertaker.

Please be aware, new applications can take up to two months for wholesalers to grant.