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Old 11-09-2012, 11:54 AM   #21
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Well it ended up that we were low on water. Even though it kept saying we were down to 1/3 tank! Odd that it kept trying to pump water. Lesson learned! Thank you all for helping so quickly! This forum is such a peace of mind when you need help! Oh and this pump is super quiet too! If it hadn't been so quiet in here, I would never had heard it running!
It's not unusual for the no water situation even though the monitor still show 1/3 full. The suction line for the pump usually isn't on a sump at the bottom of the tank...the connection to the tank is on the side or end. You may be surprised by the amount of water still in the tank below the pump suction connection.

I recall someone on here moving the pump suction line to the tank drain connection on the sump of the tank with a 'T' connector. Then use can use every gallon in the tank. The downside is that any debris in the tank may clog the pump suction line.

Dave
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Old 11-10-2012, 01:09 PM   #22
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Hi,

Our new 395amp has a pump that runs continuously & noisily. We know we have water, because we filled it to overflow. We were told it is a faulty pump. We also seem to have a faulty FW gauge also, as it jumps between 2/3 Full & Empty. Luckily, our dealership is sending us a new pump for now, as we are snowed in (but not 'froze-in'!). Thanks for the input here- every bit helps, as the manuals are extremely generic.
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Old 11-10-2012, 01:56 PM   #23
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More help please!

We just filled our 395amp FW tank, and for the past 20 minutes water has been running out of a blue rubber hose under the middle of the unit that has no fittings or valve... as much water as we've put in has run out. It isn't the low point drain- what IS it? The service mgr at the dealership couldn't identify it over the phone. We understand there is an overflow valve, but how long/how much should run out if that's what it is?

Also, our water pump (which will be replaced) is sending only cold pressurized water to our bathroom, and no water at all to the kitchen. Is this strictly a pump issue? The hot water tank is fired up and full but no water is getting out.

We are in a snowy area, but we have the underbelly skirted/insulated, and tank heater has been on.

Thanks,

Brian & Terri
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Old 11-10-2012, 02:39 PM   #24
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Btxlr did you check the bypass at the hot water tank. If that is open, it won't go thru the hot water tank. Just a thought!
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Old 11-10-2012, 02:47 PM   #25
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Its the tank overfllow, many have similar problem. Vent is very low, when tank fills its begins to siphon, and will drain the tank till the vacuum breaks. Could to < 1/3 tank remaining. Some have raised vent couple feet inside to prevent this.
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Old 11-10-2012, 03:24 PM   #26
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Thanks Vince, Hopefully thats it, can you tell us where this vent is. Do you think that's why we don't have any water to kitchen and only cold to restroom?? Thanks for all the help as this is our first RV. We're looking at 10 below tonight. Could this siphon issue drain the hot water tank too.
Thanks for your expertise.
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Old 11-10-2012, 03:33 PM   #27
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Thanks RVChick,
Yep we found out the hard way after de-winterizing that we even had a bypass valve. The sytem was fully funtional until we ran low on water,our FW monitor showed 2/3 full at time of actual empty a couple of days ago. I just can't get that there is no modle specific manual for greenhorns. We are learning all this in 12" of snow and neg temps ugg!!
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Old 11-10-2012, 04:33 PM   #28
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Two words go South!! -10 not good for humans or rv, more later from keyboard....
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Old 11-10-2012, 04:46 PM   #29
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Vince,

Wish we could go south, but not for a few more weeks! Thanks for any and all input- we appreciate it during the learning curve-
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Old 11-10-2012, 06:15 PM   #30
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Almost all pumps are designed to run dry
Without harm.
I agree the pump can run dry with no damage, I would start to look for a leak somewhere, the pump is not pressurizing. You could also have a bad seal in the pump but highly unlikely. you could have also picked up some garbage from the tank holding the valve open now. Also you can set the on and off on the better pumps by pressure also if you are low on H2O in the tank you might not be able to pressurize.... I do not know which model you have.
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