You can update your equipment list by clicking on the Equipment tab to the left of your dashboard (if you are using the website) and edit them there.
If you are using the app, click on the menu button (three stacked lines in the bottom right of the screen), then click Equipment and you can edit them there.
The tubing is a default piece of equipment that cannot be removed since about 80% of the program uses it. To add a piece of equipment, click the + sign next to it and the picture will become colorized instead of black and white.
If you need to remove a piece of equipment that you previously added, click the - sign and the picture will become black and white. The "Buy" button will remain there regardless if you have that piece of equipment or not.
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