 cover them make sure they've got at least enough in there because what you want to do is you want to put fresh fuel in it when you go to run it so if they're if they're you know let's say five gallons in this tank that holds 20 or 30 or whatever that's fine as long as it's covering those fittings and then you could fill it up when it's time to use it that's if it's a plastic tank yeah we just don't know when you're going to need it so you definitely want to put the additive in there