Swing Mooring No Antifoul ?

[Bigplumbs]

I have a swing mooring on the River Deben in Suffolk and a 17 Foot boat that on no accounts am I going to Antifoul. I was wondering how long people with experience think I could leave the boat on the mooring and it will not foul up. I am hoping I could get 2 weeks and then just pull it out for a washdown. Do people think I could get any longer than this


Thanks

[beamishken]

Fresh water probably fine but I left a rib in a coastal marina for a couple of weeks and it had tiny barnicals starting to grow which were a bugger to get off

[Fenlander]

Yes similar here. Last years holiday in Fowey we let the Aerotec on a mooring for two weeks. When we cleaned it down at home it took some quite determined rubbing with a coarse weave cloth and squeezy to get the tiny growths off.