What is a water block on a mains-fed water cooler?


The Water Block is an important part of the Plumbing and Filter Kit for a mains-fed water cooler. It is highly recommended on all installations. The Water Block is a backflow prevention device. It also prevents large scale flooding by limiting the amount of water (dependant upon the setting) that passes through in one flow. Therefore it is important that the Water Block is connected at the mains supply, vertically and not any further down the water cooler installation.

If your plumbed-in Water Cooler does not have a water block it is of uptmost importance that one is installed as soon as possible.


Water Cooler Water Block

Water Cooler Water Block


To set the flow meter on the Water Block use the white key provided to move the arrow to number 1 on the inside of the rim. This will limit the flow to 4.5 ltr. If the arrow points to 2, the flow will be limited to 9 ltr. Each incremental number raises the flow limit by 4.5 litres.


In the event that the water block shuts the water off the pink button in the centre of the block will pop out. Simply depress the button to reset the water block.

Some more modern water blocks have a mechanism external to the water block which resembles a red push switch – to reset these water blocks you simply have to push this switch back in.

Robert Laughton

Robert Laughton

Rob Laughton is an established part of the UK water industry and has business interests in drinking water products.

He is actively involved in the self-regulatory associations which work to keep strict standards within the UK water industry.

His related water businesses are listed on www.drinkingwaters.co.uk and include The Water Delivery Company - Londons' largest independent plumbed water cooler supplier.

One Response to What is a water block on a mains-fed water cooler?

  1. […] first thing to look at is the water block -and check that it has not tripped. When the water cooler water block trips it stops any water […]

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