Hi, all - we bought a house a couple of years ago in New England that came with an in-ground pool. There was some cracking around the coping when we first got it, but I wasn't too worried about it (oops) while I was figuring out other things (like how a pump worked). But now that I feel a little more comfortable with a pool, the cracks are getting worse. Any idea how to fix this while I figure out a real repair? Think I can I just pour some of that quick-crete/silicon caulk in it that can withstand New England winters?
Some background - I don't know what kind of pool this is. When we first moved in, I asked around for help to replace the tile, and was told it's every type of pool except the type of pool that particular vendor could work with.
So I'm not sure if it's concrete/gunnite (though the walls/floor seem to be), fiberglass (I don't think so - except maybe some added steps?), and one person thought it was a pool that used to have a liner because it has metal walls, but someone painted over whatever was holding the liner. I honestly have no idea, and if anyone knows anyone around the New England area who knows these '60s hybrid-type pools, any vendor info would be appreciated!
TIA!
Some background - I don't know what kind of pool this is. When we first moved in, I asked around for help to replace the tile, and was told it's every type of pool except the type of pool that particular vendor could work with.

TIA!