Ok, this one is bad. Ground water is seeping into the crawlspace and filling up the footing bays. I need to dig under the footings to allow the water to gravity drain. I know that this sounds ridiculous, but it’s what has to happen.
My first thought was to use my 3.5 inch coring bit in my bosch roto-hammer and then stick three inch pvc under the footings. The problem with this is that the coring bit immediately fills with dirt. I think that I need some sort of auger. Is there one made for an SDS style roto-hammer? Anyone have any bright ideas that I haven’t thought of? I am somewhat desprate and will try basically anything.