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Old 06-19-2021, 12:42 PM   #1
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Water tank vents mod to keep from losing water

Hey guys,
After reading several posts about the water in our holding tanks siphoning and surging out of the vent hoses and having the same experience, I came up with a solution that may work. Understanding that the tank needs to vent out when filling and vent in when using the pump for your on board water, I extended the three vent hoses to the back of the motorhome and fabricated a bracket with three, 1/2 turn valves on it. I then added a note in the wet bay to remind myself to open the vents when filling the water tanks and a small sticker that just says vent above the water pump switch. That way when we want to pull water from our tank, just open one of the valves. When the pump is shut off, go out and close the valve. Same with filling the tank. Open all three valve till if is full and then shut them.
Less than $20 in parts and a little time.
Also these will keep the mud daubers out of the vent.
Marc
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Old 06-19-2021, 08:33 PM   #2
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Nice job! I basically did the same thing to my TT.
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Old 06-19-2021, 11:30 PM   #3
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We did these 1/4 turn valves to ours in 2016.

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Old 06-20-2021, 05:48 AM   #4
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I just put rubber stoppers in the vent tubes (remove one when filling) but I also added a one way check valve just upstream of the rubber stopper to let air in if I forget to remove the stopper before running the pump. I just tested it a few days ago.

Sometimes people forget to follow their own reminders . . .
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Old 10-15-2021, 02:38 PM   #5
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no more losing fresh water Red hawk SE

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my solution to the losing water out of the fresh water tanks.....
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Old 10-15-2021, 02:54 PM   #6
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Attachment 76358

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my solution to the losing water out of the fresh water tanks.....

Ok

On my to do list..

Very nice!!
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Old 10-15-2021, 03:21 PM   #7
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It looks like the Redhawk SE has 2 fresh water tanks.... one under the bed and one behind the drivers seat under the dinette inter connected by a blue PEX . The 3 drain lines are off of the tank behind the drivers seat.... I had a plumber friend fab this ball valve rig for me. On test runs around the hood it works fine. test run dry camping Tuesday - Thursday of next week for a moderate shake down run. And yes, reminder stickers at the water control valves, at the coach control panel above the water pump switch and on the dash....
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Old 10-16-2021, 06:09 AM   #8
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Attachment 76358

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my solution to the losing water out of the fresh water tanks.....
What Model Redhawk SE do you have?
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Old 10-16-2021, 07:36 AM   #9
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my solution to the losing water out of the fresh water tanks.....
Now that's cool!
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Old 10-16-2021, 12:22 PM   #10
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It's a 2021 Red Hawk SE. 22c

25'... 1 slide-out on the left rear
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