Brendon over the years but generally speaking probably 8 years. We knock the varnishing out in one day and it's mixed in with the regular maintenance so we really don't even notice it. Our routine is to work only a few hours in the morning on maintenance days so it doesn't become like work. We do the stainless for a few hours for a couple of days, the varnish for a few hours for a couple of days, the bottom for a couple of hours once a month, we usually have some local polish the hull and topsides because that's just no fun at all. This way the boat looks pretty good and we aren't killing ourselves.