Not sure , as I put the bucket next to filter and vessel and the bucket was 3/4 full in a short time.
Might have been 10 minutes to 3/4 fill it and I’ve been out since about 10.30, came home about 10 minutes ago and bucket was ful and overflowing of water, the water pressure was over 40psi and flowing through the hose pretty quickly.
What is a booster you mention,got any pictures of them please?