My father in law is an old school caravanner from 90's and he told me I have to drain my boiler in my caravan ready for winter but I thought I just had to drain off the taps to empty it. I have a 1994 Fleetwood Garland 165/5 with a Whale watermaster.
I'm not familiar with the model or spec of the van, but if there's an on-board water heater/tank then I'd expect there to be a drain valve to empty it too. If there is, then your dad's right as any water left in the system or pipes poses a serious risk of freezing and bursting/damaging any part of the water system.
Leaving your taps open allows the system to 'vent', but won't drain the water as it will only drain from the lowest point i.e., drain valve near boiler.
Although an older van, the valve maybe similar to this where the vertical tube goes thru the floor to drain water beneath the van...
As a point of interest, it's usual practice to fully empty before towing the van regardless of the weather, due to instability/movement of fluid in transit.
-------------
Paul
Every day's a school day!
Discounted Insurance Quotes for UKCampsite.co.uk visitors! Up to 12.5% off!
Agree. Once your pump is off the taps will not drain the water away. All you do is drain some water in the pipes and then drain the boiler to vent the taps. If you have not done this then you may find some problems with frozen water, pipes or joints expanding etc. If your water system has a filter then, as you have left water in the system, once you have drained the boiler it may be prudent to remove the filter and put a new one in next spring. Water in that filter may have cracked it.
Phil
------------- If you're not on a fell your wasting your feet and for 2014 it's.......Feb Castleton Mar North Yors Moors; Apr Sutton on Sea; May Thirsk; Jun Clapham/Riverside (Lakes); July Wharfedale; August Crakehall; Sept Knaresborough; Oct Wirral Park/Clitheroe
Thank you very much for your advice. My boiler has a polystyrene type jacket - I just hope that will save it from freezing. I believe temp has dropped to -7 around here. I guess I'll have to check the pipes for leaks and to replace the filter in the boiler. I'll inspect the damage saturday afternoon.
lots of advice here,if yours has the polystyrene jacket it could be a carver 2 and to drain remove the plug outside on the cowl by unscrewing it.it can still freeze up.
When the water system is empty and you fill up with cold water, it always fills the hot water boiler first before any other part of the system. This is why when you start to fill up they advise to open the hot taps first to remove any air locks. When done, open the cold taps second to release any remaining air locks. Having said this, as the hot water boiler is the first fill it will always be the last place where it will finally empty so there should be a drain tap somewhere in the sytem near to the boiler. Most probably as it's a 1994 it would be on the outside of the caravan where the square plastic flue (approx. 8" square) protrudes and it usually says CARVER in the centre. At the bottom left corner there is a nylon slotted screw that you turn aticlockwise to release all water from the system. If this is the case then before you drain the system you are best to connect the gas or 240v mains and slowly heat the water in case there is any frozen ice still contained within the boiler. Whilst heating the water, check for any leaks from the boiler tank and hopefully there won't be. When the water is just warm, switch off the energy source (gas or electric) first then release the drain plug. Open all the onboard hand taps in order to vent the system and drain out all the water from the boiler tank and put the drain plug in a safe place. Remember to screw the drain plug and rubber seal back in before refilling the water system.
Sorry if this is a bit lengthy but it's best if you are knowledgeable first as to how the fresh water system operates. It is then easier to understand how the sytem functions especially for novices to the caravanning world. It also pays to purchase the Haynes Caravan Handbook by John Wickersham as there are quite some useful information on various topics related to caravanning.
Yhank you for your help. I checked it and it seems okay. It turned out to be a Malage E boiler and when I connected the taps the water was running clear and with what appeared full pressure in both kitchen and bathroom. I drained it off okay but could not heat the boiler as being a fair weather caravanner I dont have Propane and no access to 240 supply at storage yard.
also don't forget that if you also have a non-return valve fitted somewhere, you'll need to disconnect the pipe behind it to release that water. I have one on my 93 compass, and have had a heater on frost protection until today when I finally disconnected that pipe. didn't want to risk leaving it attached and it freezing....then another water housing would bite the dust. Arghhhhhhhhh!!!