I have a built in pool with a concrete deck. The concrete has been seaping a white stain around (what appears to be) a clear bead of sap. The contractor keeps returning and painting over these stains… but they reappear within a couple of weeks after they do this. They do not seem to know what is causing this problem… would you have any ideas?

Thank you for your help.


waterloop Changed status to publish April 8, 2024