ATI 給我回信了  蠻快的  之前聽網友說德國人不鳥寫英文的  看起來還好 
先回答一下  其他的地方我不清楚  但德國和新加坡是50Hz的 
有經驗後我就學乖了  一定要事先請他們定110V 60Hz版的 
時間比較久  但還滿值得的  新加坡比較便宜  運費也便宜  運送速度又快 
下面是他們的兩次的回信: 
第一封: 
Hello Tim, 
the different of the pumps used with 50/60Hz ist he diameter of the 
meshwheel. To give you an advice, I need to know what exactly does not work. Is the pump not spinning anyway or is there a noisy "clicking" or what is going on. 
    I need more infos, because 60Hz pumps are not necessary at all. I think,  you have to cut the mesh 1mm in diameter, but before you do it, answer my questions please! 
    
Regards 
Joerg Blei 
ATI-Aquaristik 
 
他要我先告訴他真正的問題  我回他說: 通電後  必須用手指去撥轉盤(wheel)  它才 
會轉 
他又回我第二封: 
Hello Tim, 
you have a 50Hz Impeller in your pump. But no problem. Just cutt he mesh/thread in the whole diameter about 1mm and test again. Don`t cut too much - only 1mm-steps and test again. Do not cut anything on the plate (plastic), only the mesh material. 
This will let your pump start properly. 
Regards 
Joerg 
ATI-Aquaristik 
問題來了  請大家幫我瞭解一下  所謂"mesh/thread "  是? 
是轉盤  還是  轉軸 ?? 
整支:
		
		
	
	
還是上面的白色軸心, 或是.....