I have a Pentair Sandollar sand filter. We paid the pool store to close the pool since it was our first close. I wasn't home when they came and closed it up last fall. They left the pump and currogated hoses infront of the pool and we stored them in the basement for the winter. About a month ago I was out pumping water off the pool and noticed a small hole that had clear dried glue around it, too small of a hole to be where a hose would go. I was wondering what it was, did something fall off? I checked the ground which is covered in 2-4" river rock, found nothing and moved on. I was reading something else on here tonight about a pressure gage reading and I realized that could be what this hole may have been for, I went out and checked the filter and sure enough, no gage. I guessing it fell off? Or could the pool store removed it? If they did it isn't with the pump and I know it wasn't left with the pump and hoses because I would have put it with the other small things in a ziplock bag. I'm guessing it must have fallen off, we had a very hard winter.
So can I buy a new one? If so is it easy to install? I'm guessing you don't just push it back in where it came unglued from? I can take pics in the am, it is dark out now.