In these days most camping or off-road trailers have one or two watertanks built in, maybe some big caravans too !!!
Any idea how to clean them or disinfect them for human water consumption ?
I think that after a few years of infrequent filling and draining some stuff must have built up inside and one cannot open them like a 20l plastic bottle.
Any comments or proposals ?
It is as you have stated Gerd. I have found that there is even some algae growing with in the pipes to the taps. This in some state reduces the flow of water through the pipes not to mention the hygiene about it.
I have made a water solution with pool chlorine granules and poured that into the water tank. Just pour in the water solution and not the un dissolved granules. It was a milky color and rather strong solution. About a cup full of chlorine with 20 liters of water.
I then pumped this through the pipes and let it stand for a day or two. Best is to hitch the caravan and tow it a few km so that the water can slosh around in the tank.
This removed all the algae from the tank and the pipes. At the time I bought the caravan I installed a proper drain tap for the tank at its lowest point. I then drained the tank.
You will find that for the next about 3 full tanks the water still has a strong chlorine smell and you would not even use it for coffee. But there after its all fine and great.
I usually maintain this after the chlorine flush with Milton Tabs one in the tank every refill When camping continuously. Other than that I drain the tank while driving home from a camping trip.
Some forum members have already implemented a filter system by which the water going into the caravan tank is always filtered properly clean no matter where you fill up.
This is my next step for the caravan as some of the resort make use of bore hole water and the lime usually clogs up kettles and urns. Just think what your geyser looks like on the inside. This would just be a preventative measure from my side to maintain the geyser in the caravan apart from drinking clean filtered water.
Hope you get the water tank sorted. The first time I did the chlorine flush was with my Penta. It had a 25liter water bottel in the nose cone and I could see the algae in the plastic pipe that went into the bottle with the little 12V water pump.
Worked very well for me.
Depends on how bad it is. If it is to keep it clean and save (maintain it), then I feel using miltens is the safest way to keep it sanitised and germ free.
I open the valve on my way home already to ensure it is empty when I get home. 2 days before a trip I fill it, add miltons open the taps in order to ensure the water and miltons mixure is also in the pipes and leave it over night. You need to fill it up again open the taps so that the fresh water runs freely for a few seconds and then drain it again after a hour or so in order to ensure the water you are going to use do not taste like miltons.
I put Milton baby bottle cleaner in the tank before i go and drain when i get home made a tap to drain
Many thanks for the good tips.I also think that Miltons willbe the most appropriate and effective treatment.
My Supra is in for a service and some small rectifications and when back I will tackle the water tank .
Leon, jammer ek kaap nou die draad vir inligting! Ek het 'n Sensation Vee en wil ook 'n dreineringsopening op die watertenk aanbring maar weet nog nie hoe nie. Het jy die drein in die pypleiding tussen die tenk en waterpomp ingesit(dis wat ek beoog) of direk op die tenk-verduidelik asb hoe jy dit gedoen het. Om die tenk te verwyder lyk vir my na 'n ingewikkelde storie! Dankie by voorbaat en as ons 'n nuwe draad moet begin is dit ook reg so.
Ek het die uitlaat pyp na die krane ens gesny en plastic kraan ingesir as ek by die oord ry maak ek die kraan oop (Motorhome) en Classique