So progress on my pool is moving along quickly. After plaster removal one crack that runs from tile line halfway down the pool wall is visible. Our pool guy spoke of possibly needing to add staples to the crack. What's a good estimate of the cost and how effective is the staple fix? It is about a 3-4ft crack... Pictured below. To my eye is looks like it could just be plastered over... But what do the staples achieve?
Also unrelated to the crack there is large wet areas In the shallow end of the pool where the bottom of the steps feel sandy and waterlogged. What is the cause of that? I don't have the space to upload another photo... Will repost