Author: The Avaire Team
Date: 8/12/2008 7:30 pm EDT
Generally speaking, a grout sealer is not required or recommended with Avaire Flexible Grout.
Assuming the spill was well after the grout was fully cured, try Softscrub with Bleach and a soft bristle brush.
Lemonade should not stain the grout. If it dried it will definitely attract dirt (it is sticky), but should not have stained.
Please let us know how that works for you.
If you have any specific questions, please feel free to call our tech support folks at 402-505-7627.