I need to print a small quantity of small waterproof boxes and hangar structures. Single filament head is fine. They don't need to look great as they will be partially submerged in water continuously but need to be watertight (aquarium use). The info I found sys PET-G might be best.
Also really need a printer recommendation since there are so many options. I am a retired electrical engineer with lot of software and hardware/robotics/stepper/servo/building experience. I don't want to buy something that is overkill but want a printer that is fairly reliable and inexpensive. Any recommendations will be greatly appreciated.