I do not know if it was lucky for me, but I can not write anything negative about the suction pump. I have already used merfach and am satisfied.
She has a good spring, snapped neat one (so that one does not trip provided from the mechanism) and the suction tip had already some suffer with me (but is still top fit).
She does exactly what I expect from such a suction pump and also makes a solid impression. The desoldering I had previously claimed the triple and was no better (was lost during a move).
But I also need to write this in my entire life I have never had such a desire to screw a pump at will (never do certainly also because as you supposed to also repair when the spring is flat ?? times and solder has in 25 years never plugged one of my Guns.) That's why I can not say anything to the thread. My bagless vacuum cleaner I will not even screw and interior plasters if I may compare again.
Simply I am satisfied and would buy it again. More can be I do not expect.
Hans Hartmann
