Small stones fall out from the gap between the floor and wall while I'm brushing the shower room.
We suspect the gap might just be filled with concrete, but we're not sure.
How should we fix this? Should we fill it with silicone or concrete?
Do we need to remove some of the white material before filling it?
Any suggestions or better process ?
I also found this product, but not sure if it fits our needs
https://www.bunnings.com.au/selleys-300g-white-wet-area-waterproof-silicone-sealant_p1230981
