It's not just the BAR it's in the water flow!
A man on a bike travelling at 50 mph hits a brick wall, what happens - poor man on bike

A man in a 40 ton truck travelling at 50 mph hits the same brick wall - poor brick wall

So you need a decent BAR say 120 - 200, at more than 11 litres per min flow rate, 15 litres would be better, 25 litres a min better still.
No good buying 150 BAR with only 7 litres a min flow rate. It's like taking a p**s
Try a Kranzle they will last you a lifetime.