If you know your current password, you can easily change it via the My Account page.
Sign into your account on app.plumbs.com. Select Profile from the My Account drop-down menu in the upper right hand corner of your browser.
Under Account Details, click Change Password. Enter your current password in the first field. Then enter your new password in the two form fields below. Make sure your new passwords match. Click Save Changes to confirm.
A blue bar will appear at the top of your screen to confirm the change has been made.