My pool deck is concrete and the pool is at least 20 years old. The handrail for my steps has been loose since we moved in. So loose, in fact, that I can easily lift it out. It's roughly a P shape with both ends going into the deck. The cored holes have no anchors or hardware of any kind in them and the clearance around the pipes is barely 1/32". When the rail is in the deck, the rear pipe has some tension on it, so that I have to push it down to make it go to the bottom of the hole. If I let go, it lifts about 1 1/2". I tried filling the holes with Fast Plug but with no room around the pipes, I just succeeded in filling up the inside of the pipes. Can anyone help?? TIA
Hal

Will try to post some photos.