For anybody who si interested in solution, current situation is, that after few hours of flushing many litres of soap water through the aquaduct, the pump and flow meter is now working again, but with one imperfection - the flow rate dropped by about 20%, so there is still something stuck inside of aquaduct. And also, the temperature sensors are still dead, displaying random numbers, so aquaduct is little bit crazy about it
So now I have put inside some other fluid, which I know that it can clean a lot of different mess from my past experience. I will keep it there for week or two, and i hope it will dissolve rest of the gunk. I hope that the temperature sensors will work again too.
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