I'm pretty sure I know the cause of the stones falling out.See the gutter on the ground smashed by the rocks? That should be on the house. It's been on the ground since I re-sided the house last year, and we have had some pretty heavy rain here lately. I put in new drywall and windows in the room above about 3 years ago and haven't noticed any shifting or cracking in the drywall, so I think it's pretty much not going anywhere at the moment. However I am going to contact a foundation expert or 3 this week to have the damage assessed. Today I want to set the rocks back in and I bought the quickcrete mortar that I linked to from Lowes. The directions call for troweling it on, but that is not working to well for me so I was wondering if I could add a little more water to the mix to make it squeeze out of one of those bags to get into the cracks better. Any harm in this? will it shrink too much when it dries?
Thanks Shane