Hi Herb .. And thank you all for your responses .. I excavated down to a solid sub base consisting of some huge native boulders (which are very prominant on my property) and poured approximately 5 yards of concrete so Im pretty sure the pad didn't fail as the strucure is still perfectly level .. On further inspection, I'm fairly certain the stucture became bouyant .. I'm not sure why or how but it did ... the position of the stucture moved forward about 5 inches, comprimising the seal and the rest is history .. I decided that the new structure position and allignment are ok to reseal it where it is ..
Now I wait for either a stretch of dry weather or a hard freeze so I can get a concrete truck backed in to pour 5 more yards of concrete to anchor it in place .. Im going to drill and pin the fresh concrete with rebar to the existing 5 yard pad and cover the flat base of the sturcture .. when the fresh concrete sets I will place a couple of large boulders on the top of the newly poured concrete for good measure. The only real consideration with this plan is .. ITS PERMANANT .. I could Jackhammer it out if need be .. but for all intents and purposes .. Its there to stay .. Any thoughts ?????
