I popped into lidl today and got a florabest 5 ltr pressure sprayer
Got it home to find that a JG 18 fitting goes straight on to the lance so can be connected to a beer line
I have been using the 5L florabest pressure sparayer Lidl had a few years ago. They really are great for beer line cleaning. I actually got the latest florabest 5L sprayer too,a bit different model but got JG fittings connected. The pump part of the sprayer is greased so the o-ring can slide easily. Not really wanting grease near my beer lines, I dismantled the pump part and soaked in hot water with washing up liquid. It does take a bit of work to remove all the grease but has to be done I think. Clean thorougly after with whatever cleaner you choose. Of course be sure fittings are secure as you can build up serious pressure with the sprayer