Pole Mount Foundation Options
We are getting ready to install a few top of pole mounts for a new array. I have seen the foundations done a few different ways. One way is to pour the concrete to about an inch or so below the ground surface, cover the pour with dirt and seed it with grass. The other way is to use a concrete form such as a sonotube and pour the concrete to a few inches above the ground. We are using galvanized poles and have no problem painting them. Is there a big difference in these two methods. Is one way significantly better than the other? My common sense would make me think that pouring the concrete to a few inches above the ground would be less likely to corrode, but does it really make enough of a difference to warrant all the extra work/materials needed to accomplish this? Homepower had a good article on installing pole mounts using the method of pouring to an inch or so below ground and covering with dirt, and that seems to be a very straight forward approach that in my opinion looks better (Aug/Sept 2005 issue).
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