Floe drain down kit.
We caravan throughout the winter and use a Floe drain down kit to empty the water system after each trip just in case we have a freezing spell between uses. The thing is we've had problems with our water system and I'm wondering if pressurising the system to the 1 bar required to drain down could have a detrimental effect on the water surge damper/pressure switch which has had to be replaced?
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I know this post has only just appeared but I hope other users will offer their input as the cost of frost damage in particular can be very expensive.
I am also considering buying this item, particularly as planning to swap vans shortly but firstly need to know which flow pump fitting I will need.
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Bazalab
Depends on the make of c'van you own, if it's a swift you need the Truma connection
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l have one but its no use now has l have changed the van to a Coachman which has a Truma connection. But the Coachman 460 VIP that l have has a solar panel l have set the Combi heating to 7 degree's to stop it freezing, check the voltage on the caravan and its keeping it at 12.4 not sure if that's a little low but will monitor to make sure it doesn't drop any further. If someone can tell me that it should be higher then l will connect to the house 240V when the forecast is for frost. When its connected to the 240v it usually reads 13.4v
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Heethers I own a flo system for my Van but have actually never used it! I find that if I open my drain taps, remove the filter and open the 3 caravan outlets- Sink, basin in the bathroom, and shower, before I leave a site for the last time in a season, then by the time I have driven the rig to my storage, the system has well & truly drained down anyway.
But like you I take the extra caution of turning my heater setting down to come on at 7 degrees C. I am lucky because where my van is stored I have access to Mains, so my system and battery is always live! I find that keeping my battery on charge, and my heater primed, uses a negligible amount of electricity. I pay an extra £10 per year for the facility, and the site owner is very happy. So in answer to your query If you keep the van at home I would hook up! It won't cost a bomb!
TF
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tigerfish , I do the same as you when leaving site and drive home with all taps and drains open, but using the Floe system I'm still able to drain 0,5/0.75 litre of water from the system every time. The caravan is stored on a site without any power supply and so I need to know it's fully drained. This is the second time the surge damper/pressure switch has failed, allowing the water pump to run continually .
Apparently Truma don't make the same component anymore and so a mod has to be made ( more expense) to fit the new design. I was wondering if charging the system with compressed air from my tyre pump was causing the pressure switch to fail.
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I drain what might be left in the on-board tank & my hot water tank on the access road to the site when I leave though when I left my last site (Southport ) a few more gallons of water on the pitch wouldn't have made much difference compared with the amount of rain we'd had. 😟
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When I had the caravan I used to connect a foot pump to the Aquaroll water inlet, pressurise it and open each tap in turn. Now I have a on-board tank, I'm not sure how to deal with any residual. Fortunately sub-zero is rare in de deep south.
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You can buy the different adaptors from floe website if you change caravan. https://www.keepfloeing.1gbx.com/categories/Touring/
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As my water filler is of a similar size to a car fuel tank there may be some technical aspects to overcome.
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