Farbiaci detekčný roztok odhalí miesta, na ktorých sa hromadí povlak a sú čistené nedostatočne.
Miesta bez povlaku alebo s čerstvým povlakom sa zafarbia na svetlofialovo, nedostatočne čistené miesta s povlakom starším ako 24 hodín sa zafarbia na tmavofialovo.
'%3e%3cpath%20d='M202%20-0.0397949H0V41.7533H202V-0.0397949Z'%20fill='%23003DA5'/%3e%3cpath%20d='M184.046%2020.4985L175.982%2034.6107H179.451L185.704%2023.3982L191.967%2034.6107H195.432L187.37%2020.4985L194.753%207.33769H191.277L185.704%2017.6069L180.144%207.33769H176.663L184.046%2020.4985ZM159.918%209.69004C166.173%209.69004%20171.09%2014.7888%20171.09%2020.9762C171.09%2027.1217%20166.103%2032.2583%20159.918%2032.2583C153.732%2032.2583%20148.743%2027.1198%20148.743%2020.9762C148.743%2014.7908%20153.667%209.69004%20159.918%209.69004ZM159.918%206.87C152.138%206.87%20145.702%2013.1987%20145.702%2021.012C145.702%2028.8611%20152.138%2035.0843%20159.918%2035.0843C167.697%2035.0843%20174.137%2028.8572%20174.137%2021.012C174.137%2013.1987%20167.701%206.87%20159.924%206.87M129.974%2022.6379H130.726L138.971%2034.6147H142.703L134.022%2022.3832C138.219%2022.023%20140.852%2019.0577%20140.852%2014.8604C140.852%208.71288%20136.042%207.34167%20130.866%207.34167H126.933V34.6067H129.972V22.6379H129.974ZM129.974%2010.1617H130.868C134.529%2010.1617%20137.813%2010.5956%20137.813%2015.0794C137.813%2019.3124%20134.346%2019.9652%20130.911%2019.9652H129.974V10.1617ZM110.514%2010.1617H111.635C115.179%2010.1617%20118.761%2010.4901%20118.761%2014.9381C118.761%2018.8427%20115.906%2019.8557%20112.538%2019.8557H110.514V10.1617ZM110.514%2022.6758H112.721C115.002%2022.6758%20117.348%2022.3852%20119.187%2020.8707C120.897%2019.4577%20121.796%2017.2148%20121.796%2015.0077C121.796%2012.5817%20120.74%2010.1975%20118.718%208.78453C116.728%207.41132%20114.306%207.34167%20111.951%207.34167H107.467V34.6067H110.512V22.6658L110.514%2022.6758ZM95.6439%2024.0529H86.4216L91.0885%2013.135L95.6439%2024.0529ZM96.838%2026.875L100.058%2034.6147H103.423L91.1601%206.03613L78.5725%2034.6166H81.902L85.1917%2026.877H96.838V26.875ZM63.6384%2022.6379H64.3927L72.6398%2034.6147H76.3654L67.6883%2022.3832C71.8816%2022.023%2074.5205%2019.0577%2074.5205%2014.8604C74.5205%208.71288%2069.7103%207.34167%2064.5399%207.34167H60.5955V34.6067H63.6364V22.6379H63.6384ZM63.6384%2010.1617H64.5419C68.1938%2010.1617%2071.4875%2010.5956%2071.4875%2015.0794C71.4875%2019.3124%2068.0147%2019.9652%2064.5777%2019.9652H63.6384V10.1617ZM37.5197%207.34167H34.4807V24.4132C34.4807%2027.5238%2034.7713%2030.0194%2037.1595%2032.2961C39.0043%2034.1092%2041.6433%2035.0823%2044.2086%2035.0823C45.5788%2035.0924%2046.9365%2034.8218%2048.1981%2034.2871C49.4597%2033.7525%2050.5985%2032.9652%2051.5443%2031.9737C53.7135%2029.7308%2053.9324%2027.3765%2053.9324%2024.4112V7.34167H50.8994V23.5793C50.8994%2025.7147%2051.0109%2028.0989%2049.5621%2029.8363C48.2983%2031.3588%2046.1609%2032.2583%2044.2086%2032.2583C42.2184%2032.2583%2039.9039%2031.321%2038.7138%2029.6532C37.448%2027.9198%2037.5197%2025.6072%2037.5197%2023.5793V7.34167ZM29.4178%209.55272C27.0795%207.7765%2024.2142%206.83355%2021.2781%206.87399C17.5133%206.88657%2013.9062%208.38729%2011.2435%2011.0489C8.58086%2013.7104%207.07862%2017.3169%207.06445%2021.0816C7.06445%2028.8253%2013.5742%2035.0803%2021.2781%2035.0803C24.2043%2035.0602%2027.0507%2034.1241%2029.4178%2032.4036V28.6402C27.2465%2030.8095%2024.2434%2032.2563%2021.1726%2032.2563C15.0609%2032.2563%2010.1054%2026.9765%2010.1054%2020.9742C10.1054%2014.9719%2015.025%209.68805%2021.095%209.68805C22.6523%209.70527%2024.1903%2010.0339%2025.6187%2010.6546C27.047%2011.2753%2028.3367%2012.1755%2029.4118%2013.3022L29.4178%209.55272Z'%20fill='white'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_465_5199'%3e%3crect%20width='202'%20height='41.7931'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
