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Re: hose test
In the roofing profession we used a hose to try and locate a know leak. We would start at the bottom and work our way up until it was found. Now when we say bottom we mean spraying in the down position but slowly work our way up. Quite a few times leaks where never found on the roof and when simulated rain along the siding the leak would turn up at the location inside the home. Sometimes it was windows sometimes it was a flashing problem with the roof.
Now as a inspector the only time I used a hose is to check the correct pitch of a concrete porch or areas of concrete along a foundation. Nothing makes a better statement then a picture of a pond along a wall or porch thats pitched toward the house.
I also use a hose to hydraulic load the nitrification fields of a septic system.
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