Tag Archives: feed and expansion cistern

Expansion pipe

The expansion pipe or vent pipe is a pipe associated with a cold water storage cistern or a feed and expansion cistern. Its purpose is to accommodate the expansion of water when it is heated, and to allow any excess water to … Continue reading

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Polytank feed and expansion tank (4 gallon/18 litre)

The Polytank feed and expansion tank is a feed and expansion tank produced by Polytank Group Ltd, the British manufacturer of water tanks and cisterns. As the name implies, the tank is designed to be used as a feed and expansion … Continue reading

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Tank connector

A tank connector or tank coupler is a fitting which connects a pipe to a cistern, allowing water to be drawn from the cistern, and in some circumstances, allowing water to enter it. Tank connectors are typically found on cold water storage cisterns and … Continue reading

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Feed and expansion tank

The feed and expansion tank, or feed and expansion cistern as it is technically known, is a cistern which supplies the central heating circuit with water and accommodates the expansion of the water when it is heated by the boiler. … Continue reading

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Overflow pipe leaking: why is it leaking & how to fix it

Overflow pipe leaking? In this guide, we’ll tell you how to identify the problem and how it can be fixed. Alternatively, if you would prefer a qualified plumber to fix your leaking overflow, check out our guide to finding an emergency … Continue reading

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Overflow

An overflow is an important part of a cistern, and serves two purposes in the event of a fault: to take away excess water in order to prevent structural damage to a property, and to indicate to the homeowner that there is … Continue reading

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Pumping over

Pumping over refers to a symptom of an improperly configured central heating system in which water is discharged into the feed and expansion cistern via the expansion pipe while the pump is running. The cause is usually either: The pump … Continue reading

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