Forum Discussion
MFL
Nov 03, 2019Nomad II
"Also my GD 2400BH has a black tank water inlet for a spray bar to clean inside of the black tank. Is it necessary to blow the line for that considering there are no valves and it's not pressurized? I already did it but just curious if its needed."
^^^^^Yes, it is needed, unless you have never used it. Water will stay in that line, and may damage the backflow preventer.
Jerry
^^^^^Yes, it is needed, unless you have never used it. Water will stay in that line, and may damage the backflow preventer.
Jerry
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