Hi all, I’ve just noted this dent in my acrylic shower tray. I’m not too concerned about the aesthetic but worried it may cause a leak and go onto the ceiling on the ground floor (as the shower is on the 1st floor) I know there are loads of acrylic repair kits out there and I’m willing to give it a go. My only concern is the dent has caused abit of the acrylic to stick out (see attached image). So would I need to sand the acrylic first to make it flush with the rest of the tray before filling? I’m worried I may sand and sand through the whole acrylic depth. Any help would be appreciated.