concrete (gunite) pool repair
I bought a house with a gunite in ground pool with tile around the top edge. Water had gotten under the edge where it meets the pool rim tiles above and freezing had made it all expand out. About one quarter of the tile was gone or popping off. When I started pulling off the tile, chunks of the concrete under the rim of the pool starting coming out and I realized the top of the pool has sandy concrete that was not mixed right. I wanted to fill that in first and then build back level the material that chunked off with the tile so I could apply the thinset and tile. I need something super sticky with the consistency of putty to stick on a vertical wall. Someone said sticky mortar. Someone else said just put the tile thinset in there to fill it up. I want to do it right. Help!