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Another factor that worries me, but now in the tests of the bill, they are the cooland flow rate used , a variation from 2 to 12 liters per minute generates a very calm situation of entrance in the cameras, generating very little turbulence and checking a homogeneous feeding of the flat tubes, very different situation when it is used above 20 or 30 liters per minute, in my opinion demanded for systems of high efficiency.
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20 or 30 lpm is many times greater then the highest flow system I have ever heard of. AFAIK no such systems exist. You'd need hundreds of watts of pump to push that through a 1/2 inch system.
12lpm was included as an extreme upper limit. Even pushing that through a system is very impressive.