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This topic contains 4 replies, has 4 voices, and was last updated by Anonymous 7 years, 10 months ago.
January 1, 2008 at 2:29 am #36337
my wife and i are buying a house without winter water. what is the best way to store water? our house is in the mountains, stays below freezing in the winter, and the ground is pure rock. thanks for any suggestions!February 16, 2008 at 10:32 pm #40119
I keep all my water in old orange juice containers (1500litre) which as it happens sit over what used to be a reservoir for the farm below me. The reservoir is a hollow concrete box of around 6metres cube and the tanks sit over the open top of this. The theory is, and this can be applied almost anywhere, is that the air temperature in a space over the ground is never below 5C so therefore the tanks should never freeze. Now there is something that I haven’t been able to prove, since we are getting warmer winters here in Devon nothing freezes for more than a day and so the volume of water never gets to drop very far any way. So in fact my study here is of little use as to prove anything. However I am confident that air allowed to rise from a rock strata will maintain temperatures above freezing so long as you are not above permafrost. So simply put, build an insulated container over a rock fissure and you should be drinking ice cold fresh water all year round. My water is fine and all I have done is as I said above and then wrapped all the pipework in plastic sheet filled with rockwool insulation which I was given. So far so good. Three winters with no freezing. Mind you we have a few chilly nights to come, but I have complete faith.
Whether this will help I don’t know but you could easily set up a trial with a max min thermometer and a box.February 17, 2008 at 10:27 am #40123
I gave this some further thought overnight and I reckon you could build a heat store that you then store your water in or over. The theory is a heat absorbent surface, ie a solar panel that passes warmed air through a substrate such as pumice which has a high surface area and is therefore absorbent. The heat is then released by means of vents. This will depend on the amount of radiant heat you get in your chosen location, but assuming it is cold but clear and not grey and cloudy (like gloomy old Devon)then you should be on to a winner.
I can’t think where you would get plans for this idea but there must be info on the net somewhere as the idea is not a new one. In fact it isn’t that far removed from the Roman underfloor heating system, the difference being you use solar radiation instead of a couple of slaves feeding a fire.
If you maintain a temperature of just above freezing then the water will stay liquid. It takes a sustained period of cold to start the icing process, however once ice crystals have formed then you are in trouble as the whole process is speeded up. This is why you need to protect all parts of the system, pipework, pumps, inlets etc.
The best policy is to store larger amounts of water as the heat exchange required to lower to freezing point is greater and so the process will take longer your water will stay wet through all but the longest coldest spells. Again it shouldn’t be too difficult to do some basic maths to calculate the volume of water and the heat used etc. I am no mathematician so can’t help here but any keen physicist at your local university should have the ability to work this out, it is all known physics as water is the basis of a lot of known data for temperature calculation. Hence why zero Celsius is freezing point.
It would probably pay to have a separate tank over the main tank that acts as a filling reservoir so the cold incoming water is separated from the main store until it is heated (superficially) to the ambient temperature in the store. This system is the same as in a Fortic tank used in some central heating systems. If the incoming supply is particularly cold it could be possible to pass it through a heating jacket or an old radiator that would use solar heat to raise the temperature to a suitable level. Again a bit of maths is what you need here.
Anyway, I hope this assists you in thinking your problem through. Good luck, Love & Light, Phil.
Oh and as a bit of data regards volumes of water gathered from rain. I live in Devon England and we have regular winter rainfall and some summer rains . I gather my water from a 81m square roof (9×9) filter it to 0.25mm through a Wisy vertical filter (which i could show you how to make one, I paid over £100 for mine….pah, live & learn).
The water is allowed to settle in a 1500l tank then pumped to 2x1500l tanks using a swimming pool pump run from battery/solar/inverter and controlled by a relay and float level system that my friend made for me ( a NAND gate I think).
I never drop far below a total of 3000 litres and I use a washing machine and flush toilet. I am very conservative with water use and at the moment I have no shower and instead wash from a bucket, but this is only a temporary arrangement. However 2 gallons (10litres) is adequate for a shower and you really don’t need to shower every day unless it is hot and you are dirty. As for dish washing, well those machines are a pointless piece of junk for lazy people seeing as I can wash all my plates, pots and cutlery in three bowls of water in less than half an hour. Hey stop me here I’m ranting……..February 18, 2008 at 4:17 pm #40129
“my wife and i are buying a house without winter water. what is the best way to store water? our house is in the mountains, stays below freezing in the winter, and the ground is pure rock. thanks for any suggestions!”
I store around 400 gal. inside my living area using several 55 gal. plastic drums. I figure I’m not going to freeze so if the water is in with me, it’s all good…October 14, 2009 at 7:25 pm #40616
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