# How does the FlowStop stop flooding ? {% hint style="info" %} **Good to know :** The FlowStop is the result of 3 years of R\&D. It is protected by a patent. No construction work required, quick inflation and compact storage, it is the most effective flood protection on the market. {% endhint %} ### When should FlowStop be deployed ? In case of rising water or heavy rainfall. ### Is it necessary to add a strip of material between the FlowStop and the walls or the threshold of the openings ? It is not necessary: the FlowStop has been designed to be used without any construction work (such as a rail or notch) and is sufficient to ensure its function. ### What sizes of openings are covered by FlowStop ? Each FlowStop is manufactured to the exact width of your opening to ensure a 100% watertightness. ### What is the height of the FlowStop ? The standard height is 80 cm. We produce each FlowStop custom-made, so it is possible to customize the height if you have constraints. ### How does the FlowStop block the flooding? {% embed url="" %} --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.flowstop.fr/general-information/how-does-the-flowstop-stop-flooding.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.