Drainage Around the Home

When asked at 3 years of age, “What is Dada good at?” my daughter answered, “Digging!”

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Both before and after the Whanganui floods of 2015 I have focused on drainage on the farm and especially around the house where pretty much everything had been done wrong – causing a lot of water to flow underneath leading to serious damage over the last three decades.

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Managing water can be done well or can be done poorly. I took this photo at work one day.

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It is important to direct water away from homes. Retrofitting drainage where it has been done poorly can be difficult and expensive. Along with a number of other approaches – including cutting channels in concrete – I put in a French drain on the high-side (South) of the house.

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Ironically I finished the drain two days before the 2015 floods.

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The perforated pipe runs the length of the south wall.

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It’s surrounded by stone and wrapped with filter cloth.

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Water flows through the stone and into the pipe.

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Stone covers the filter cloth to keep it tidy and out of the sun.

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At the southwest corner the perforated pipe enters a sump and then flows under the entire home on a gentle slope through a solid pipe to the north side, and then away from the structure.

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Any amount of drainage that directs water away from a home is important!

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Peace, Estwing

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