Hi
What would be the best product to strip the sandstone flooring in our kitchen.It appears to have been sealed but is dark and I want to strip back and reseal.As its indoors I know it will be a bit of a task .Would ammonia work,as I have some and in some areas in the hall the dog has managed to pee and this has stripped the sealer away ,and I thought dog pee had ammonia in it.Any advice would be great.