Spiders in pool

I have a fiberglass pool and travertine coping around the pool. I am terrified of bugs and somehow these huge spiders keep getting between the coping and waterline of the pool. I spray them with dawn spray and they float to the bottom but nothing seems to keep them away. There aren’t trees out back and only insect repellent plants around the pool. I just scrubbed the pool and sprayed a bit but I don’t want to mess up the salt water pool… does anyone have any recommendations? I ordered buzz off and it doesn’t help with the spiders and also jacks magic surface magic that’s supposed to help break the surface tension… I’m at a loss! Any recommendations would be appreciated!