Thanks for the info Larry Flasher that's good to know Sent from Yahoo Mail on Android On Sun, Aug 4, 2019 at 7:36 PM, Flesner via KRnet<[email protected]> wrote: On 8/4/2019 7:05 PM, Jeff Scott via KRnet wrote: > Facet does make a line of pumps with a check valve in them to prevent > backflow. I haven't personally tested one yet, so can't say how effective > they are.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ My two Facet fuel pumps are installed in parallel. My concern was that one pump running and the other shut off it might set up a continuous circular flow backwards from the "on" pump through the "off" pump and back to the intake of the "on" pump with no fuel going to the carb. Before installing the pumps I hooked them up head to head and tried to pump backwards through each pump. Zero fuel flow so I eliminated the planned check valve. To date, 15 years and 700+ hours, the system is working fine and any time above pattern altitude I only run one pump. Larry Flesner _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected] _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/[email protected]/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to [email protected]
