Does your water tank need a clean?

DOES YOUR WATER TANK NEED A CLEAN?

Purchasing a GRP water storage tank can be a big decision as to which one is the right tank for your configuration, however if it is supplying water for human consumption, It is recommended that if the system or part has been substantially altered or if an engineer has entered the tank for maintenance or remedial purposes in a manner that may lead to contamination, the tank will need a clean and disinfection.

Even though the tank or parts are new and would be a fit state to set up and go, if any bit of debris enters the tank, via fixing an outlet to the tank, drilling the valve into position, engineer entering the tank to fit extras, this can lead to bacteria building up in the tank once filled. So its best practice to have the tank cleaned once installed, so you are starting off on the right foot.

Certification will be issued once a clean and disinfection has been performed, so peace of mind, that everything was set up correctly initially.

If i do not get my tank cleaned and disinfection, will my tank still be ok?

If you are supplying water for human consumption, it is best practice to have a clean after installation and annually (ACOP L8).

Water can harbour many different types of bacteria, with some being harmful if consumed by humans. One harmful bacteria which is most commonly knows is Legionella disease.

Outbreaks are very low, however outbreaks of the illness occur from exposure to legionella growing in purpose-built systems where water is maintained at a temperature high enough to encourage growth. If conditions are favourable, the bacteria may multiply, increasing the risks of the disease, and it is therefore important to think about commissioning of your water tanks.

A tank inspection, clean and chlorination of a tank and its services is recommended not only on an annual basis and when there is visible evidence of the following -

Sediment
Stagnant water
Biofilm
Corrosion
Flora growth
Animal Contamination

To prevent and for peace of mind we offer the below inspection, clean and chlorination of your GRP water tank.

BEFORE AND AFTER COMMISSIONING WATER TANK IMAGES

COMMISSIONING EXAMPLES

Clean & Disinfect Cold Water Storage Tank Work to comprise:

All labour & materials to carry out the following:
Inform the relevant personnel of any interruption, disturbances or potential of such, to the water supply that may occur
Carry out a visual inspection of the storage tank ,logging and reporting any leaks or problems before commencing work( if the tank has a division then each compartment will be cleaned individually ensuring a constant water supply).
Isolate the Incoming and outgoing water supply (checking correct operation of valves)
Drain down the water storage tank or individual compartments
Photograph internal surfaces prior to commencing the tank clean
Using clean water only, clean all internal surfaces using non-metallic equipment and tools
Remove all debris from the inside of the tank where possible
Re- photograph clean internal surfaces
Commence refilling the tank with mains clean water via Inlet valve
Check & clean filters in overflow, warning pipe and tank breathers (if accessible)
Disinfect the tank and leave to stand for 60 minutes
Test water for correct PPM levels
Take any samples (if ordered)
Place the tank online
Issue a full report and certificate of compliance in accordance with ACOP L8 (2013) requirement

Certification of what you will received once Clean and Disinfection has been carried out.

Example of Certfication