Underestimating grout protection; use epoxy grout for top-visitors areas to resist stains and mould
https://www.mediafire.com/file/k7mzhfjud7e9t7z/pdf-25692-30048.pdf/file
Underestimating grout upkeep; use epoxy grout for prime-site visitors areas to withstand stains and mold, cutting back customary resealing.