First time posting. I was caulking the 2in wide x 16ft long gap between my driveway and garage yesterday and I screwed it up. I cleared most debris out then put play sand as a base. Then I put foam backer in there but I suppose it wasn't deep enough. It was taking a lot of bottles of caulk to fill the gap. Now the foam backer has risen to the top of most of it. Its basically a covered caulk rope.
Should I just rip out the foam backer and place a new one in there lower down as a I can? Then put new caulk on top. Will I even be able to do that at this point? I was trying to get away with not using as much caulk but it looks like that backfired.
Any advice is welcomed. Thanks!