The key to successful foundation water management is even water distribution. That means that the same amount of water is being applied to the soil all around your foundation (excluding patios, driveways and other hardscape). So let’s break that down.
Most homes have 4 sides; typically an east, west, north and south side. Each side of the house may be slightly different; the amount of sun/shade, plants versus grass, slope (both towards and/or away from the house), your roof runoff from rain, runoff from neighbor’s roofs, air conditioning units next to the house, etc.
So running your sprinklers on the shady side of the house might need less time to apply an equivalent amount of water that the sunny side needs. Right! So turning on your sprinklers and determining how much water they are putting out, versus how much water your foundation needs is key.
Sometimes hiring a licensed irrigation professional can help determine whether those “working” are working “properly” for your foundation watering needs. Some key things to correct are:
- Proper nozzles for the existing head spacing
- Adjusting and cleaning nozzles so they spray properly
- Corrections to head spacing if needed
- Water scheduling for the different stations/zones that cover your foundation
- Addressing obstacles impeding coverage (garden hose carts, lawn tools, sheds, etc)
- Determining if drip irrigation is an option. (Not all homes need drip, but all homes need even moisture around the foundation.)
When water restrictions limit the how often we can water, as long as we are applying even amounts of water to the entire foundation, we can help prevent foundation shifting. If we can only water once every 14 days or once every 7 days, the idea is that the entire foundation will dry out just as evenly as it gets watered --- IF WE WATER PROPERLY!!