Have look here: WIT
Reading your posting sent shivers up my spine. Putting anti-fouling on a Wayfarer is like cursing in a church! Your boat will loose value instantly. Leaving it on a salty mooring isn’t a good idea either. The GRP will get water logged making the boat heavier. And make no mistake we are talking tens of kilo’s. Specially older boats will develop blisters or worse de-laminate due to osmosis. I have seen rotten keel beams (made of wood) due to water ingress on boats left on a mooring. This too will reduce the value of your boat, not to mention worsen its sailing characteristics. Finally the rocking on a mooring (24/7 !) will have an effect on the boat too. I hope your cleats have strong counter plates to cope with the stresses caused by the continues movement. A Wayfarer is not designed to be kept on a mooring.
I know from experience how easy it is to get a Wayfarer in and out, just get yourself a decent trolley. Keeping her in a dinghy park keeps her in a better shape and she will remain a light weight lady. She is easier to rig and easier to maintain and she doesn’t need expensive anti-fouling, that needs to be re-done every few years and is impossible to remove without damaging the boat. Your boat will keep its value and she will be a much better sailing boat, giving you much pleasure for years to come.
Keeping a W on a mooring; bad idea!
Anti-fouling: money better spend on a trolley.
But its a free world, now that I have said my piece, I hope you will enjoy your Wayfarer just as much as I enjoy mine, regardless if she is on a mooring or not.