i ran about 250 on it and worked great i think u can run around 400 on it and id say thats the max but i dont really know it worked good for me and was cheaper than buying a new releaser for a smaller bush i got, its pretty neat to see it work, how many taps do u plan on adding it on ? and i had one prblem this year when it froze soiled because the check valve at the bottom froze up before the trees stopped running and it froze soild but it untawed,