For the bubbler depth, I had people tell me that I needed to go 6", but I'd seen builds here that had them at 9" and they were ok. I really wanted more depth, so that's what we went with. I hope it's ok.
I completely misread Darin's question and thought he was referring to what depth do you need a bubbler shelf to be to put chairs on. Now I see he was asking what length is needed for a lounger. Your depth is great, Jamie. I think mine will be about the same in the bubbler area. I just want it deeper for chairs and am trying to work out the depth and length for it.
For the umbrellas, I won't use both at the same time. But I was trying to estimate where I wanted shade during different parts of the day. When standing at the small step entering the pool and facing the shallow leg of the pool, we are facing north. So the sun travels from right to left across the ledge. In the earlier hours I'm hoping that the right sleeve will allow the umbrella to shade the left side of the ledge, and in the afternoon for the left sleeve's umbrella to shade the right. If I had only done one in the middle, I don't think I would have gotten the shade coverage I wanted. Hopefully I'll be right. It's hard to judge these things when the sun is in such a different place I the sky this time of year.
That makes good sense to me. Our tanning ledge faces South, so the sun runs from left to right (east to west), so I know exactly what you are referring it.