? mechanical relesers how do the operate

[morning mist]

i am working on building a releser,i'm not shur which way to go electric or mechanical, i do not know how a mechanical works?

[Monster Maples]

sent you a private message morning mist. If you would like to take a look at mine just send me a message and let me know.

[Haynes Forest Products]

There both Mechanical..........The difference is one needs elec to operate and the "Mechanical" uses only the vacuum that is in the system to operate the dumping cycle.