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Old 01-23-2016, 02:03 PM   #1
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City water is filling fresh water in 260IBL... Help!

We just Purchased our 260 IBL and are using it today. I have the water control center set for city water, which is both valves turned up. Upon inspecting the fresh water tank the panel indicates that the tank is full. The fresh water tank was only one third full before we hooked up. If I turn both knobs for system use mode which is the left knob sideways and the righ knob up I still get city water going through. How do you all have yours set?
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Old 01-23-2016, 02:30 PM   #2
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possible bad check valve on your pump, allowing water to fill tank on the line that the pump draws from
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Old 01-23-2016, 02:37 PM   #3
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Turn the city water off and unhook the hose from your unit.

Now turn on the water pump and pump a few gallons out of the tank.

Turn off the pump and reconnect the water hose, turn the water back on, DO NOT use the water pump.

Has this helped?
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Old 01-23-2016, 02:57 PM   #4
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Yep, sounds like possibly the water pump's check valve is stuck. Usually running the pump (like suggested above) for a little bit will clear out any dirt, debris or whatnot and let the check valve close.

Let us know if that works (it does most of the time). If not we have other suggestions ready to go but best to try the easiest first.



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Old 01-24-2016, 10:27 PM   #5
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Fresh water filling when control valve is on city water

If your water pump has a defect diaphragm it will allow water to leak thru it into the fresh water tank. You will need to have the pump replaced.
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Old 01-25-2016, 02:44 PM   #6
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Quote:
Originally Posted by Ford Idaho View Post
Turn the city water off and unhook the hose from your unit.

Now turn on the water pump and pump a few gallons out of the tank.

Turn off the pump and reconnect the water hose, turn the water back on, DO NOT use the water pump.

Has this helped?
This is the first thing I did, but instead of putting just a few gallons in, I filled it to the 2/3rds mark and used the tanked water with the pump for a few hours. After I felt it "should have" cleared anything from the valve, I returned the system to "City Water" and turned on the hose (city connection). Still had the same problem. I opened the low point drain and once the tank was completely empty and I turned the city water connection back on, it would start dripping rapidly from the low point.

Here is an interesting twist. Setting the controls to their System Use or City Water allows complete pass through of the outside city water connection. I was under the impression that System Use should only be pulling from the water tank with the pump. In my case, that setting is acting exactly like the "city water" setting.

I'm guessing it must be the pump not properly stoping the water coming back through the valve.
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Old 01-25-2016, 03:47 PM   #7
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Just a thought. Do you have the Kantleak Valve water control panel. If so they have a replacement part they will send you no charge and you can replace it in about 15 minutes. This will stop the water going to the fresh water tank. My different brand 5th wheel had this setup and the exact problem. Anderson Brass Company Phone # is 800-476-9876
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Old 01-25-2016, 04:37 PM   #8
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Just a thought. Do you have the Kantleak Valve water control panel. If so they have a replacement part they will send you no charge and you can replace it in about 15 minutes. This will stop the water going to the fresh water tank. My different brand 5th wheel had this setup and the exact problem. Anderson Brass Company Phone # is 800-476-9876
This is the one we have.

When in "System Use" or "City Water" settings, it is still sending a small amount of water back into the Freshwater tank.
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Old 01-25-2016, 05:03 PM   #9
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Mine did that after I let it freeze. Apparently it froze just bad enough to damage the check valve in the pump. Nothing I did would stop it from filling the tank. The pump was about $70- online. I couldn't find a rebuild kit online, but when the pump came, it had a parts list in it... of course...
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Old 02-01-2016, 10:03 AM   #10
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So it did end up beings pumps back flow valve not working. I am considering having it replaced, but I would need to take the trailer 3 hours north and leave it with them for several days to get the repair completed. I think I want to just order the Camco inline Backflow Preventer for 1/2" threaded connection. What do you all think? I'm confused by other posts where people have talked about this. I'm being told that it needs to go on the inlet side of the pump (side between the freshwater tank and the pump). My research says that if you out it on the outlet side (between the pump and trailer plumbing) it will reduce the pressure to the pump and not allow the pump to automatically Kick on. I'm only concerned that the pump may run dry for very short spurts since the check valve would be before the pump. Maybe not.

Anyone know if this sounds accurate?
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