I’ve had good success using active pulling with the vac(non stop) and nitrogen sweeping on initial purges. We were able to successfully and repeatably get 0ppm in 48-60 hours using the sweep tech. It reduced enough time on our purge we were able to go a bit hotter with little/no difference in product. We would purge at 98-100F with nitrogen sweeps on every initial vacuum as well as each pull after flipping slabs(we flip every 12 hours).
spoon