]I will be installing the coping soon on my DIY pool. I will have a concrete deck butting up to 3.5 wide x 2.24 high x 9 inch long bull nose coping with an expansion joint in between. I'm in the process of pouring a concrete base about 12 inches wide x 6 inches deep reinforced with rebar that bridges across the deck supports because I don't trust my back-fill. I was planning on bridging across the back-fill with the concrete deck which would tie the coping base to the concrete deck. Option 2 shows the coping base and the deck with the rebar separated as to let the deck float from the coping base. Some pics are included below of the build. I was planning on using a modified thinset for adhering the coping around pool walls. I'm wondering what I should on the stairs since most of the coping blocks would be sitting on the plastic but need to be space up about 3/8 of an inch to match the height of the other blocks. Any advice would be greatly appreciated.
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