エピソード

  • Wood vs Stone: The Softwashing Pre-Wet Rule

    Wood vs Stone: The Softwashing Pre-Wet Rule
    2026/07/09
    Learn why dry timber can soak up bleach and suffer lasting damage, while bone-dry stone and block paving need concentrated chemical contact for effective cleaning. This episode breaks down when to pre-wet, when to avoid it, and how to protect nearby plants while getting professional results.
    続きを読む 一部表示
    5 分
  • Why Pressure Washing Fails on Black Spots

    Why Pressure Washing Fails on Black Spots
    2026/07/08
    Learn why high-pressure cleaning can damage sandstone while leaving lichens alive, and why chemistry beats brute force for removing black spots. The episode also covers surfactants, sodium hypochlorite dilution, and essential safety steps for protecting plants and surrounding surfaces.
    続きを読む 一部表示
    4 分
  • Why Smart Cleaners Combine Pressure Washing and Softwash

    Why Smart Cleaners Combine Pressure Washing and Softwash
    2026/07/07
    This episode breaks down why high-pressure cleaning and softwashing work best together, from killing deep-set lichen on stone to speeding up driveway cleans with a pre-treatment step. It also covers how to pitch bio-treatments profitably, when to rinse, and how to avoid damaging decking and rendered surfaces.
    続きを読む 一部表示
    5 分
  • From Roof Shingle Wars to UK Softwashing

    From Roof Shingle Wars to UK Softwashing
    2026/07/06
    This episode traces the accidental birth of softwashing in the US, where high-pressure roof cleaning was destroying asphalt shingles and forcing a move toward chemical cleaning instead. It then follows the method’s arrival in the UK, where render, heritage stone, and strict environmental rules demanded lower concentrations, better equipment, and a more precise approach.
    続きを読む 一部表示
    5 分
  • Fixing Bleached UPVC and Brown Lead After Softwashing

    Fixing Bleached UPVC and Brown Lead After Softwashing
    2026/07/05
    This episode tackles two common softwashing mishaps: pink-brown staining on UPVC from sodium hypochlorite and brown oxidation on lead flashing after overspray. Learn how to prevent both issues, why they happen, and how oxalic-acid cleaners and proper pre-wetting can restore a professional finish.
    続きを読む 一部表示
    3 分
  • When to Rinse After Softwashing

    When to Rinse After Softwashing
    2026/07/04
    Learn when sodium hypochlorite should be left to work and when it must be rinsed away, with practical guidance for roofs, driveways, patios, render, and wood. The episode breaks down the chemistry, safety concerns for pets and children, and the workflow mistakes that can damage surfaces or ruin a job.
    続きを読む 一部表示
    5 分
  • The Bleach Label Trap: HSE Numbers, Law, and Job Site Safety

    The Bleach Label Trap: HSE Numbers, Law, and Job Site Safety
    2026/07/03
    We break down why sodium hypochlorite only needs an HSE biocide number when it’s marketed with biocidal claims, and why “raw cleaning agent” labeling changes everything for contractors. The episode also covers what regulators really care about on site: RAMS, SDS, PPE, runoff control, and safe dilution practices.
    続きを読む 一部表示
    5 分
  • Mix Chemical Ratios by Sight: Mercedes and Clock Tricks

    Mix Chemical Ratios by Sight: Mercedes and Clock Tricks
    2026/07/02
    Learn simple visual shortcuts for mixing sodium hypochlorite on-site without reaching for a calculator, including the Mercedes-Benz thirds method and the clock-face quarters trick. The episode also covers the safest order of operations, bucket marking, and how to finish the mix with surfactant for effective softwashing.
    続きを読む 一部表示
    5 分