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The Water-Gate water barrier is 4 times wider than it is high which gives it great retention power (ratio 4:1). It is important to consider this factor when choosing the barrier model which is most appropriate for your situation. Start by estimating the maximum floodwater level. If you are not familiar with this, communicate with the local authorities in your area. They will be able to provide forecasts and statistics. |
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When you know the probable flood level, choose a barrier model with a water capacity equal or slightly superior to the level of the flood. See our various water barrier models.
Now that you have established the height of your barrier, to determine the required length of your installation, you must consider the Water-Gate configuration, that is to say a ratio of 4:1. Start by multiplying the height of your barrier by four. The result gives the total width of the barrier. To this figure, add a reasonable space behind the barrier (E) and you obtain the total distance between the wall of your property and the tip of the barrier’s bib (D).
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It is from this point that you must calculate the external perimeter which will give you the required length of barriers for a reliable and effective installation.
If your installation must finish against a wall, the barrier’s bib must run up along the wall higher than the retention height of your water barrier (approximately 1 foot higher). This will prevent water from infiltrating through the corner and the barrier from skidding.
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