A & L have recently secured contracts to upgrade chemical dosing systems within existing Scottish Water Treatment Plants throughout the country and extending to the Highlands and Islands.

The scope of work has involved the initial condition survey , condition report / cost estimate for upgrade, and the subsequent site works; this work includes for the renewal of chemical dosing pipework & valves along with the Installation of trace heating and lagging for low temperature protection.

These works present a particular challenge in the respect that temporary dosing systems require to be in place during the refurbishment works to ensure an uninterrupted water supply to the customer, and in most cases the dosing pipework is Installed in below ground ducts/ chambers.