1) Yes, you do not have to remove the original chips if you already have the chips installed on your system. We sell the system without chips for individuals who want to save a couple dollars on their order. Ultimately, we plan on doing away with the version that comes without chips because it is easier to work with the other unit that has the chips.
2) Yes, there is a way to prime your cartridges using the syringe provide. DO NOT puncture your system in any way. Follow the steps as shown in this video that we made to prime your system. Feel free to e-mail us directly at firstname.lastname@example.org
if you need further assistance (please provide us with your contact number if you do email us).