Armstrong pump
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I’m not sure if I typed it correctly; it’s probably these words~~ I’d like to know how this pump works~ Please send me any relevant information as well. Thank you. . .
See http://bbs.hcbbs.com/viewthread.php?tid=580208&highlight=%B1%C3
You can call them and ask their company to mail you samples, hehe
The person on the 3rd floor explained it in a clear and straightforward manner; the only difference is that the toilet uses a button to be operated by hand, while Armstrong uses a float to do the same； The toilet uses a pressure difference as power, while Armstrong uses steam as power.