You gotta give me more credit than that.

But I understand your concern.
I have looked in a few libraries for everything you can imagine relating to these kinds of pumps. The problem I am having is getting specific information regarding the type of pumps distrubuted and who manufactured them in an effort to determine which pumps are the most common.
This post was also intended to get first hand knowledge from people who might have past knowledge of these pumps, be it world travels, visits to public parks, amish towns, etc.
__________________
-Travis Covington
2008-2017 - Engineering Mentor of
Team 254
2001-2008 - Engineering Mentor of
Team 968
1998-2001 - Mechanical Director/Driver/Member of
Team 115