I have just moved my 1430 to another location. I took two sets of carts, one IJM Easyfills and another non-IJM set. I had put normal Scotch tape over the holes as none of them have plugs,or are large enough to take them. The IJM ones with their foam in the air inlet leaked less but they did leak. They were transported 500KM and leaked along the way. The mess when these things leak is a sight to behold.
The ink seems to leak under the Scotch tape. I'm wondering if another tape would stop the ink wicking, or if I need to keep the carts rigid in transit. They didn't move much but obviously it was enough to cause chaos.