Automatic prime and flush siphon condensate pump system

A system for transferring fluid from a first location to a second location, comprising:

• a. a fluid reservoir defining said first location, said fluid reservoir being positionally located a predetermined distance above said second location;
• b. a fluid inlet in fluid communication with said reservoir for supplying said fluid thereto;
• c. siphon means disposed within said reservoir for displacing said fluid from said reservoir responsive to a level of said fluid within said reservoir being between a first predetermined height dimension and a second predetermined height dimension, said first predetermined height dimension being greater than said second predetermined height dimension, said siphon means including a substantially U-shaped housing having a siphon inlet on one end and an outlet coupling formed on another end thereof defining a first fluid flow passage, said outlet coupling being in fluid communication with said second location, said siphon means including check valve means disposed in said first fluid flow passage intermediate said siphon inlet and said outlet coupling for interrupting flow of said fluid therethrough responsive to fluid pressure at said outlet coupling exceeding a first predetermined value, said siphon means further including means for regulating fluid flow through said first fluid flow passage, said flow regulating means being fluidly coupled to said siphon inlet, said flow regulating means including (1) a float member disposed within said reservoir for substantially vertical displacement responsive to changes in a height dimension of said fluid within said reservoir, and (2) a valve actuating member coupled to said float member for displacing a valve seal with respect to a valve seat responsive to displacement of said float member, said valve seat being formed at said siphon inlet;
• and,
• d. pump means disposed within said reservoir and having a pump output in fluid communication with said outlet coupling to define a second fluid flow passage for displacing said fluid from said reservoir responsive to a level of said fluid within said reservoir exceeding said first predetermined height dimension, said fluid displacement by said pump means being sufficient to raise said pressure at said outlet coupling above said first predetermined value, said pump means including pressure responsive check valve means disposed in said second fluid flow passage for preventing fluid from flowing back from said outlet coupling to said pump responsive to fluid pressure at said pump output falling below a second predetermined value.