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Posted by Yodaddy on January 08, 2004 at 10:32:16:
In Reply to: Re: Yep posted by Amy on January 08, 2004 at 07:46:48:
A quick opening valve allows the operator to damage the float and/or the internals including the switches.
Throwing open the valve creats tremendous internal shock waves that can really screw up your cutout or level sensing device.
And yes, when testing the cutout, you should try to do it like in a true low water event where the level drops very slowly in the chamber. That's when most floats might hang and not trip fuel to the burner.