Yes it does add real value! Its is a good thing to keep operational. There is a reason it is required by the USCG. If you are on CG regulated waters and do not have an operational blower, they can impound your car and fine you. Besides why would you purposefully disable a safety feature as important as this. I always use mine for a short time upon starting. I keep tabs on what the exhaust from the blower smells like. If I smell raw fuel, I look closer to find the problem. When my tank is 1/2 full or more, I run it constantly while swimming or driving just to be safer.
This is what can happen if you have a fuel leak and don't use the blower...
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Rocky Mountain Amphicar -
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