Yes, it's a cheapie, but a problem is a problem.
This one always gave me issues. I almost turned someone away from fountain pens when I installed the cartridge because it took about twenty minutes of scribbling before any ink showed up. The person I gave it to left it alone (capped) for a few weeks, and now it barely writes. If I press down firmly on the nib to spread the tines a bit, and then relax them, it will write for the next two seconds until it goes bone dry again.
I tried rinsing the nib with running water and using a paper towel to pull out the inky water through the nib. It didn't help. If I had a converter, I could flush the pen easily, but I don't have one for this brand. If I take out the cartridge and try to run water through the grip section, won't the cartridge get a dry blockage at the opening while it's not connected to anything? I don't want to throw the pen away since the cartridge has barely been used. Any ideas?