Do you own an Aquaero? Then you could overclock the Aquastream easily to get more power.
Another opportunity would be to modify the flow sensor:
You could drill the input to get a bigger "hole". Then change input and output, so you do not need to check the right "impulse/L", the output is 5,6mm big, according to digmesa you will need 196 impulse/L now (sorry, I can't explain it better :
).
cya
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