I would also check for iron oxidation. If the stone starts to oxidize than replacement may be in orderSent from my iPhoneFirst I would test the floor to make sure when it’s dry.You can use a moisture meter to do this.Once it’s dry you can cut the floor with resin diamonds or diamond impregnated pads. You can establish a nice honed finish.You can use a cleaning or sanitizingProduct or products in your tank as you hone.Is someone drying and sanitizing the floor?Sent from my iPhoneCustomer called me to price cleaning and sealing his limestone. The river overflowed with waves to the top of the 2nd floor door. he doesn't want it shiny, just sealed. So I have a sample piece to do for him.The limestone is still drying out. My question is "Should I expect to clean each section twice since the water stayed on the limestone for 2-3 days." And, probably some of the silt or dirty water from the water has gotten into the pores of the limestone. What is the long term effect of that?Thank you for your time.--Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com Visit list archives, subscribe, unsubscribe or change your subscription preferences: http://stoneandtilepros.simplelists.com/sccpartners Start a new conversation (thread): sccpartners@stoneandtilepros.simplelists.com