Originally Posted by Snedwid
Just a DAQ,,,since the FW tank is vented to the atmosphere, how is it possible to overpressurize the system when filling??? The water spewing out of the overflow/fill hole prevents the pressure from building up in the system. Am I missing something here???
The fill tube is 1 3/8" or 1 1/2". You typically have a garden hose filling the tank, so figure you have a 1/2" or 5/8" stream of water, under pressure, filling the tank. The vent is probably 1/4". With a 1/2" stream of water flowing in, and 1/4" vent to let air out, once all the air is out of the tank, you now have 1/2" stream flowing in and 1/4" stream flowing out. The tank will pressurize.