i would also make sure your hoses and compressor are at the same air temp... ie make sure both are outside or inside vs one inside one outside. since your framing i would imagine both are outside. you could also add a
water catcher to the hose connectors to try and help collect is before it gets into the hoses.
i know trying to keep the tank filled over night could be a problem due to leaking hoses and fittings so i don't know if that would work.
let me know if you find an additive that can go in the compressor tank.