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Old 04-11-2020, 02:36 PM   #1
nvestysly's Avatar

1992 29' Excella
2010 22' Interstate
Van By The River , Georgia
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Winterizing - Floe Integrated Drain Down System

Floe Integrated Drain Down Sytem for winterizing. Any comments? Anyone using one of these?

Winterizing as it's known in the United States (and Canada) seems to be referred to as drain down in Europe. I just came across this seemingly ingenious integrated system that was created in Europe but is now handled in the United States by Lippert Components. The product is called Floe (don't know how to add the umlauts) and is basically a built-in air compressor allowing you to blow out your fresh water lines without the need for a separate tag-along air compressor. The product is available in 12V and 120V configurations.

This product may be old news to some but it's new to me. I'm very intrigued so I did some searching on Air Forums to see if anyone has experience but didn't come up with any threads on the subject. I apologize if this is duplicate information. If not, here's the scoop.

A video from the original creator APT Innovations:

and some information from Lippert Components:

and from etrailer:

I know it's spring for most of us but with some spare time on our hands due to COVID-19 concerns it may be just the time to upgrade your RV to include an onboard fresh water purge system.

I like the idea of the 12V system but didn't see specifications for current draw. The system comes with a 15A inline fuse so I guess I'd have to plan for that amount of current.
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Lucius and Danielle
1992 29' Excella Classic / 2010 Interstate
2005 Chevrolet Suburban K2500 8.1L
2018 GMC Sierra K1500 SLT, 6.2L, Max Trailering
Got a cooped-up feeling, gotta get out of town, got those Airstream campin' blues...
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Old 04-11-2020, 02:42 PM   #2
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Nice idea Id like to know how many PSI it produces.

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Old 04-11-2020, 04:16 PM   #3
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The video says the device puts out 15psi.
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Old 04-11-2020, 04:45 PM   #4
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Not sure 15 PSI is really going to do enough and also it even says that the device has to shut off and build more pressure. The air compressor pump on that has to be so small. It's a good idea for people who don't have an air compressor with them. However a full winterize never hurts either and the water pump is already on our trailers making it easy to do with a simple kit.
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Old 04-11-2020, 08:48 PM   #5
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A few more thoughts.....There are some issues with this.

1) The water pump. Wherever you install this, there will still be water in the pump and the inlet strainer.
2) City water inlet. Unless you can hook it up to the back of the city water inlet itself, there will be water in the line from the inlet to the Floe unit.
3) Black tank flush. It's a separate system.
4) Low point drains. There will still be water in these drains, which on my trailer require you to reach behind a tire to open. The Floe can assist in pushing the water out of them but you still have to go outside and contort to do it.

5) Is this little air pump really enough to get all the water out? I've read stories on the forum of people who used a hefty external compressor and still had freeze damage.
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Old 04-12-2020, 09:48 AM   #6
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One of the issues that raises its ugly head over and over again on our forum is the frequent short cycling of the water pump, which is most commonly caused by a compromised check valve in the water pump. One of the common causes is water being allowed to freeze in the check valve.
If compressed air applied to the city water inlet is used exclusively to winterize the coach, the water in the pump will not be evacuated. The city water, and compressed air is introduced downstream of the water pump. This is efficient at blowing the water out of the system from that point, but water remains in the pump and check valve. The only way to clear water from the pump is to introduce the compressed air or antifreeze upstream, before the pump intake. This requires a winterizing valve.
With the winterizing system promoted in the video, it appears that the compressed air is introduced to the system at the water inlet, allowing water to remain in the pump.
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Old 04-12-2020, 11:42 AM   #7
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I'm concerned there is not enough airflow to really do an adequate job. The inlet and pump need evacuating also. The outside faucet may take care of the inlet. The black tank flush is another problem. If you disconnect the pump inlet and run it dry you will take care of that one.
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Old 04-12-2020, 01:42 PM   #8
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Interesting idea

Ok, so I am new to winterizing my Airsteam. I had my Airstream winterized at the dealer in Portland but because of the pandemic I have moved my baby to the midwest where i plan to keep it for another year. I see there are several concerns about how this device will work with our trailers.
My question, is there a publication or site that does a thorough job of describing how to winterize and dewinterize Airstreams? My unit is a used 2015 FC so having some info specific to models would be very helpful.

Thank you for any input.
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Old 04-12-2020, 02:26 PM   #9
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Port Dover , ON Canada
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Winterize With A Bicycle Pump In An Emergency!

"The Fit RV" has shown that you can winterize an RV water system with a bicycle pump. I have tried it and it works - although slowly.

The water piping in the airstream acts like the reservoir of a larger compressor air pump and will remove the remaining water out of the system after draining through the low points and isolating the hot water tank (and draining it separately.) It is easy to pressurize it to 40 psi with a hand pump.

Ray B.
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Old 04-13-2020, 04:21 PM   #10
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save your money. use your pancake compressor or bigger and blow out your system. no need to but another compressor.

i do that each year and use 45 psi, that 10 psi less that the intake pressure vale limit on our water system

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