Following a risk assessment, you may be recommended to improve/replace certain parts of your water system. This usually depends on how deteriorated they are. We offer the following services:

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Clean & Disinfection of CWST

Cold water storage tanks pose one of the highest risks of Legionella growth within a building’s water system, due to the possibility of stagnation, temperature gain and contamination.

ACoP L8 recommendations are that tanks containing potable or drinking water are cleaned and disinfected annually, and non-potable or non-drinking water tanks are cleaned dependent upon annual internal inspection.

Our engineers come out and fully isolate the tank from the system and stored water is drained with a submersible pump. The tank and associated fittings are cleaned and scale is removed via a wet/dry vacuum. The cistern and system is then refilled with fresh water and disinfected to the required levels and drawn through all outlets to achieve optimum disinfection.  Customers are then issued with a chlorination certificate.

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CWST Replacement

We can come out and do a survey to assess your tanks and provide you with recommendations.  If a tank is structurally robust and has been maintained, we would recommend a repair.  If, however, the tank is very old, too damaged, requires relocation or you require a different capacity, then a new tank would be the best solution.

To ensure continuity of water supply during the tank replacement, we can install a temporary mains bypass or a temporary tank system.

As an example, we recently discovered a sizeable leak in one of our hotel customer’s large water tanks, so we replaced it with two smaller tanks, working in tandem with the equivalent storage capacity so the hotel had a back-up tank in the event of an emergency and for cleaning and disinfection.

 

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Pipework Alterations

A dead leg is a pipe leading through to an outlet through which water flows, but is rarely used and could potentially provide stagnation. HTM04-01 Part A says that pipework should be no longer than 3 metres.

The risk from legionella is increased in peripheral parts of the hot and cold water system where there are remote outlets such as hand washbasins, and dead legs. Where reasonably practicable, dead legs should be removed or the risk minimised by regular use of these outlets.

 

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De-scaling

We offer a de-scaling service which not only gives longevity to appliances, but reduces the changes of legionella proliferation.  The presence of sludge and scale provide favourable conditions in which legionella bacteria can grow.
 
We dismantle, clean and descale removable parts of showers and spray taps including heads, inserts and hoses every 3 months as part of a water hygiene regime.

Enquiry Form

Alternatively if you wish to chat to one of our trained representatives please call us on - 0845 603 2152