Hello, would my team be allowed to keep a compressor in pits and put the compressed air in the tanks and not have to place it on the robot?
Unfortunately, not anymore. In the 2019 game manual, R86 states:
Throughout an event, compressed air on the ROBOT must be provided by its one onboard
compressor only. Compressor specifications must not exceed nominal 1.10 cfm (~519 cm3/s) flow
rate @ 12VDC.
See rule R86
R86 in the rulebook states,
Blockquote
Throughout an event, compressed air on the ROBOT must be provided by its one onboard
compressor only.
In previous years you were able to, but as of 2019, it can only come from an onboard compressor. Although, I believe you are still allowed to pre-compress it in the pits using this onboard compressor, so you start the match with full tanks.