Best bit of advice I got from CIU member (can't remember who)
Take a spray bottle filled with solution from your bucket - spray on applicator when it starts to dry out - knocks off 10 mins per hour I reckon.
For the WFP guys I'd suggest turning your flow down to less than 20 when inside

Might have been me, we don't carry a bucket around, we have self made holders on the ladders for a bottle with solution. Wet applicator as and when needed. Monsoon holds enough for an average 3 bed semi. Dip into bucket on return to van. Got the idea a few years back from a vid on YouTube.
Had some really good tips like that on here from Daz and that gay bloke, Matt Bateman I think his name is.