Efficient way to clean decking?

Pressure washer - Kiam KM3700PR 15LPM Surface cleaner - Kiam 18” Steel Panther Gutter Vac - https://guttervacuumsystems.co.uk/product/1700w-panther-72mm-heavy-duty-cyclonic-inlet-5m-51mm-hose-51mm-hose-cuff/ Gardiner WFP - https://gardinerpolesystems.co.uk/clx-22.html Gardiner Backpack - https://gardinerpolesystems.co.uk/gardiner-pure-water-backpack-v3-22-litre.html (Hypo) Nu-clear pro - https://puresealservices.co.uk/product/pureseal-nu-clear-pro-20-litre-drums/ Industrial Sprayer - https://puresealservices.co.uk/product/chapin-1949-sprayer/ Broom - https://www.diy.com/departments/magnusson-soft-stiff-polyethylene-indoor-outdoor-broom-w-600mm/5059340086811_BQ.prd Dustpan - https://www.diy.com/departments/magnusson-black-orange-dustpan-brush-set-w-317mm/5059340086743_BQ.prd Sacks - https://www.screwfix.com/p/site-heavy-duty-rubble-sacks-50ltr-5-pack/652gt Water tank - https://www.tanks-direct.co.uk/250-litre-water-tank-upright/p6170?gclid=CjwKCAjwwo-WBhAMEiwAV4dybdKtVeXdx_amPv_6GESyz8eCG1hMrJDmtfHso7HLXbAJh6oew69mphoCpisQAvD_BwE Ball valve - https://www.amazon.co.uk/Tool-Daily-Pressure-Washer-Connect/dp/B07S21H1KB/ref=sr_1_11?crid=3O4DLSKOF2SR9&keywords=high+pressure+quick+release+ball+valve&qid=1677781175&sprefix=%2Caps%2C184&sr=8-11