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Old 12-01-2014, 01:05 PM   #11
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I have the same issue on my vent hose and I plan on extending it and running it back above the top of the fresh water tank. That should prevent it from siphoning out on its own.
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Old 12-01-2014, 02:09 PM   #12
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You should not need to worry about remembering to open the vent tube. The tank should vent through the fill tube too if you are drawing water with the pump.
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Old 12-01-2014, 02:21 PM   #13
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You should not need to worry about remembering to open the vent tube. The tank should vent through the fill tube too if you are drawing water with the pump.
I wouldn't bet on that. You have a screw-on cap on your FW fill, right? If so, that may not let enough air in during use to keep the tank from collapsing under vacuum, especially if it's screwed on tight (which it should be.) I'd still want my vent open. Just add it to your set-up checklist. Checklists are your friend...
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Old 12-01-2014, 03:05 PM   #14
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I wouldn't bet on that. You have a screw-on cap on your FW fill, right? If so, that may not let enough air in during use to keep the tank from collapsing under vacuum, especially if it's screwed on tight (which it should be.) I'd still want my vent open. Just add it to your set-up checklist. Checklists are your friend...
I don't think my fill cap is vented, but that doesn't mean I can't vent it myself - this may be the ultimate solution as the fill cap is well above the tank level... thanks to all... I just need to come up with a way to keep rain water out.
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Old 12-01-2014, 05:37 PM   #15
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I actually have a pressure fill and it does not have a cap so in my case I don't have to worry about the cap. If you have a gravity fill then a cap would cause a problem.
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