I first blow out as much water as possible from the sponge by putting my mouth up to the air vent. I then use a vacuum to pull as much water out as I can see. It is best to have a vacuum cleaner that will not be harmed by water. A shop vac or wet and dry dust buster works just fine. I have an old tank-type vacuum that I've used that we were about to discard. I hold the cart against the accessory tube opening with my hand blocking the tube opening except for the end of the cart. Not a perfect seal, but enough to pull a vacuum on the ink outlet. Then i turn the cart around to have the vacuum pull against the fill hole/air vent side. When you can't see much water being pulled from the cart I then use my table fan overnight to dry the carts further.Subarub4 said:I'm late but how do you vacuum the carts out?