Brown is getting worse

Braun Oral-B Professional Care irrigator OxyJet
We bought this irrigator to replace our broken old.
It is true, unfortunately, what many have found before us:
The pressure increases with each new irrigator von Braun always
further. He is now so low that it at best yet
enough for a nice gum massage. Leftovers from the
Remove interdental spaces is almost hopeless.
This makes the device virtually useless.
Professional Care ???? Ridiculous !!!!