Is there any number limitation for storage tanks of pneumatics ?
And In previous years we received Clippard storage tanks with the kit. Are we still allowed to use them on the robot ?
Thanks in advance.
cil
There is no rule limiting the number/ capacity of tanks on the robot this year. However, if you do not have a compressor on the robot, it must be powered AND controlled by the robot. You can use previous years clipper tanks, provided they are COTS, which they are.
There is no limit on storage tanks this year.
Any storage tank speced for 125 psi working pressure can be used, provided you account for it in the BOM and it meets all other robot rules.
[R69]
All pneumatic components must be COTS pneumatic devices rated by their manufacturers for working pressure of at
least 125psi (with the exception of [R71]-D).
As many as you can stuff into a 38x28x60 box 
If you are not running (or even if you are) a compressor on board test to see how long it takes to refill your tanks and compare to the amount of time between matches during elimination rounds. You don’t want to have a function failure because you didn’t have enough time to “re-charge”.