Pothole filler is more of a necessity then you might realise. Your driveway is the first thing that people see when they arrive at your home. If it is filled with potholes and low spots, making it something of an obstacle course for those who are arriving it is not only unsightly but also a hazard for you and your guests that could just cost you more than you bargained for.
For the most part, the reasons why our driveways of gravel or dirt get potholes is that the water will pool in certain areas and lay there or travel through eroding the earth and moving aside the gravel.
This means that if you are continuously fixing low spots or potholes in your drive, one of the steps to take prior to fixing the driveway will be to dig a culvert or otherwise improve the driveways drainage system in some way.
Once that has been accomplished, you will want to repair the potholes so that the driveway is smooth and less hazardous.
In order to do that several steps will be necessary.
Rake away the gravel, stone or soil so that you have direct access to the pothole.
Check the pothole itself. If it is moist or wet, chances are that there is loose soil in the hole that needs to be scraped away. Using a shovel, cut downward around the sides of the hole, moving outward until you are at nearly solid soil
Using smaller pea gravel, fill it to a few inches below the driveway level
After the gravel is put in, use a tamper to push it down into the hole and make it more solid. Most rental places will have one you can rent for a day.
If the driveway you are fixing is an earthen one, the hole should be full and overflowing, mounded upward at least two or three inches above the level of the driveway.
In an earthen drive, water the soil that you have mounded up, and then push it down as hard with the tamper as you can. If it goes below the driveway level, fill the hole again and again tamp it, until it lays level and is as hardened as you can make it.
In a gravel drive, the last three inches of the driveway hole should be makde up of those gravels that will match the color and texture of the cover gravel.
Your very last step in the fix is to push the dirt and/or gravel down as much as you possibly can and the best way to do that it so run over it several times using a heavier vehicle such as a truck or SUV.
Make sure to repeat these with any potholes that may be in evidence in your driveway and to pay close attention to where they are, so that you will know where the drainage may need improvement in your driveway.
Digging a culvert from the area where the water pools most frequently and lining it with pipe and recovering it, permitting the water to drain through the pipe and under the driveway will be the best way to improve your drainage in the driveway area and prevent further potholes from forming.
Proper drainage can be achieved even in those driveways that do not have a crown in the center by creating or designing your driveway with a mild sloping that moves in the direction the water naturally drains.