I sooo wish I would have ordered a foam cove & made them install it ! My sand cove is messed up in one spot so there’s a lovely wrinkle i have to watch/ clean now since my pool is “freshly” buried I don’t want risk draining just to fix that. I’ll just have to wait & live with it a while so the soil will be well compacted.
All the reading I did said that sand coves are hard to get right. We have really sandy topsoil here and I had nightmare visions of it all just eroding away!