I also have the same scenario as gjgomes. Use the LT tank for my Rigid resin as this is the resin we use the most for our part. Resin has been in the tank for about 4 months (used about 3L) resin; almost no print failures and print almost every day with this resin /tank, (High Temp resin, on the other hand, I have had very poor success with getting good prints).
I have noticed some ripples on the surface of our parts and did not understand why (no actual failure of prints yet) until I drained the resin tank and saw how extensive the ripples were in the film of the tank. I was under the impression that the tanks could hold resin for over a year with no issues.
Is there a Formlabs recommended life span of the LT tanks using the Rigid resin? Length tank can hold the resin in storage, min # of prints/life of tank, etc.? LT-Tank_10-15-19.PDF (421.6 KB)