Oops, I posted this question in the pool start up forum. I didn't see that there is a specific forum for above ground pools. My question is whether it is worth the extra expense to install a cove and Happy Bottom. We live in the high desert of southern California. We have sandy soil and no rocks to speak of. We've been told that we'll need at least 2 inches of sand under the pool regardless of whether we use the cove and Happy Bottom. Our budget is very tight so I prefer not to waste the money if sand would work just as well. Please advise on whether these products are worth buying or not? Thank you.