From the Thames Gateway to the coast
Kent's cooling plant follows its industry. In the north-west, around Dartford, Ebbsfleet and Gravesend, there are large warehouses, industrial units and business parks serving London. The Medway towns have engineering and manufacturing sites. Across the county there are fruit packhouses, cold stores and food processors, many with refrigeration plant that rejects heat through evaporative condensers. Then add the hospitals, business parks such as Kings Hill and those around Ashford, and port-related logistics near Dover and along the estuary.
Sea air and salt
Coastal and estuary sites have a problem inland towers don't: salt. A tower near the sea pulls salt-laden air through its fill, which raises the chloride level in the water and makes corrosion more likely, especially on galvanised casings and older steelwork. It also pushes conductivity up, which can fool a bleed controller set purely on conductivity into dumping more water than it needs to. On coastal sites we add chloride checks to routine testing and choose the inhibitor with that in mind.
Packhouses and seasonal peaks
Fruit and food sites often run hardest during harvest and the months after, when the cold stores are full. That's when an evaporative condenser carries its heaviest load, and when a failed dosing pump or an empty biocide drum would do the most harm. So we plan cleans and bigger jobs for the quieter part of the year, check more closely through the peak, and make sure someone on site knows what the weekly checks are looking for. Our guide to dip slides and TVCs is a good starting point for site teams.
Water supply in Kent
Southern Water and South East Water supply much of Kent, with Affinity Water around Folkestone and Dover and SES Water in a small part of the west. Much of it is pumped from the chalk under the North Downs and East Kent, and it's generally hard. Hard make-up plus a hot condenser coil is a classic recipe for scale, so bleed control has to keep up. If you're not sure which company you're with, the water bill or a postcode search on the supplier's website will settle it. Some farms and factories also draw from their own boreholes, and that water needs testing in its own right.
Getting around the county
Kent is big, and east Kent is a fair drive from Chiswick, so we plan visits in runs and agree regular days with each site. The M25, M20, M2 and A2 do most of the work, with the Dartford Crossing for anything coming from Essex. When cross-Channel traffic backs up, Operation Brock can slow the M20, so we allow extra time for east Kent visits. That's our planning problem to solve, not something that changes what your scheme requires.
Notifying the council in Kent
Kent has twelve district, borough and city councils, plus Medway Council, a unitary authority covering Chatham, Rochester, Gillingham and Strood. Notification under the Notification of Cooling Towers and Evaporative Condensers Regulations 1992 goes to the council your premises are in, through its environmental health team. That applies at port and industrial sites too, even where HSE rather than the council enforces health and safety.