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Cleaning / sanitising a plastic tank in camping trailer

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26 Sep 2019 @ 13:56:47 pm
Anonymous

I know, this subject has bee s flogged to death (or at least near death) but I still have a problem with the thousands  different options and procedures offered. Some say Chlorine is good, others swear by bleach other others use Milton , either pills or liquid. Some say fill the tank approx. quarter  after having added the MUTI, then drive around on some bad road to slosh the water in the tank properly. Some say to drain after the sloshing exercise, others say leave it overnight.Some say rinse the tank after emptying it via all the taps and pipes in your vehicle and then fill with fresh water, others say Rinse a few times (to hell with the City water account).

The quantity of the cleaning / sanitizing agent is also open for different opinions. Some say one or two cups of bleach  in 10-20 l water will do , others say the dose is sufficient for the full tank......etc etc.

Some have plastic tanks (the food approved plastics !) some have stainless steel or even normal steel.

Mi tanks are of the plastic variety (2 x 75 l) and I still do not know how to proceed, neither do I know the quality of the water left in the tanks by the previous owner and neither do I want to taste....

My first question would be : What is the difference between Bleach and Milton ????

and my second question is : What would be an acceptable mixture (Water/Milton or Bleach) if I would fill each of my 75 l tanks with 30l of water and slosh around on a bad road for two hours or so ??

Hopefully, one or two in the forum have a relative or friend working at a MILTON OR BLEACH factory ???!!! or alternatively in the HEALTH INSPECTORATE to determine a lethal mixture for BACTERIA but not for HUMANS or alternatively a borderline mixture which does generate a taste of the treated water only a little stranger than normal , with other words my coffee should not taste like bleach or Milton or......

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26 Sep 2019 @ 19:54:57 pm
Chuck Norris
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Jy het dit nou so mooi uitgespêl dat ek amper self nie eers geweet het wat ek gebruik nie.

Ek gebruik maar milton soos jy hier noem.

Ons gebruik die water net vir stort en skottelgoed.

Koffie en drink water vir my whisky koop ons..

 

 

 

As jy wil he jou drome moet waar word, moet jy eers wakker word.

Die jonge Fransies. (Parys - Frankryk)
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27 Sep 2019 @ 06:55:53 am
Leon
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Gerd your idea of using about 30 liters of water per tank is the way to go.  Milton is really not that strong to do what you intend to do.

I found that pool chlorine works the fastest and does a great job specially in the pipes.  Dilute one cup of chlorine in a bucket for each tank. Pour this white milky color chlorine water into the 30 liters but do not let the undiluted granules go in the tank as this granules will take longer to dissolve and make the rinse process longer.

You are not going to drink that rinse solution so you can make the rinse solution as strong as you want because you will have to rinse that out as well. 

Apart from the tanks you will find that inside the plastic pipes there are algae as well.  So you will need to pump the rinse solution through the pipes.  Here driving will not help with sloshing the water in the pipes so you will have to let it stand a day or what for the rinse solution to work there.

After the process dump the rinse solution and put 30 liters clean water in pump it through the pipes to get most rise solution out.   Drive around the block to slosh the tanks and then drain that again.

Fill the tanks up and just use the water for washing up dishes.  While doing that you will smell the chlorine in the water for a while and when that is basically gone you are set to go.

For maintenance

  • I use 1 Milton pill for every 100 liters of water if the water are to stand in the tank for a few days or so. 
  • If I use the water and fill the tank everyday no pill.
  • I never leave any water in the tank if the Caravan is not used for even a week or longer.  I drain what is left out.
Sonder Jesus is ek niks! ! ! !
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27 Sep 2019 @ 16:10:00 pm
Anonymous

Hallo Chuck and Leon

Thank you for your input. I would never ream to put "tank water" into whisk(e)y.

But in the meantime I have tasted the water (after having smelled it) and it tastes quite good (like good water , whatever that means).

So, I will  use MILTON  (maybe one cup  in 20l) and drive around some, Next morning I will empty and rinse with the full capacity (75 l per tank).

Will evaluate what comes out and how tasty ??!! I do not want to use Chlorine because I know that the smell and taste lingers on for a long time.

I will see how it goes and then report back.

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27 Sep 2019 @ 21:26:51 pm
Badger
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I am in total ignorance on this subject as my Oyster does not have water tanks, so forgive me if I go off at a complete Tangent. Would there be any merit in putting Drinking water through a separate line and using one of the water filters that you fit to the tap for drinking water only?   We use one in the kitchen, and it really improves the Municipal water.

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30 Sep 2019 @ 08:12:57 am
Leon
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Hallo Chuck and Leon

Thank you for your input. I would never ream to put "tank water" into whisk(e)y.

But in the meantime I have tasted the water (after having smelled it) and it tastes quite good (like good water , whatever that means).

So, I will  use MILTON  (maybe one cup  in 20l) and drive around some, Next morning I will empty and rinse with the full capacity (75 l per tank).

Will evaluate what comes out and how tasty ??!! I do not want to use Chlorine because I know that the smell and taste lingers on for a long time.

I will see how it goes and then report back.

I only rinsed the tank of the Classique and the pipe system of the Penta previously because of the algae in the pipes.  

Would appreciate the feedback.

I have found that the filter just before the pump of the Maia was blocked with Algae.  I removed that and only had Milton tablets available to rinse.  It worked fine but if you inspect the pipes closely all Algae is not removed.

 

Sonder Jesus is ek niks! ! ! !
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30 Sep 2019 @ 08:32:24 am
JohanMarais
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I used pool chlorine and water in my water bottle (no fixed tank in the Regal) and it cleaned the algae in the pipes. I left it a few of days in the bottle and opened the taps a couple of times to move the water through the pipes.

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01 Oct 2019 @ 14:02:21 pm
Leon
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Just use the water in the tank for cleaning purposes the after a short while the chlorine smell is gone.

Sonder Jesus is ek niks! ! ! !
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04 Oct 2019 @ 09:41:55 am
Johan Stander
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Hi Guys.

I dont have a built in water system in my camp trailer, but this is how i clean my 20 L water containers.

I know this is going to sound weird, but I am a home brewer and I use the same stuff to clean my brewery system as well as the kegs and beer lines.

You need to clean any organic material out of your tanks before sanitizing can take place.

To do this, make up a solution of caustic flakes (that's right, good old drain cleaner) and warm water. The dilution rate is 10 grams per liter of water used. Your water needs to be around 60 degrees C in order for the caustic flakes to dissolve properly and to do its job.

Once you have this solution in your system, you can drive around to slosh the solution around a bit and run some of it through you water pipes. The contact time would obviously depend on the severity of the algae build up.

Once you have emptied the solution from the tank you will need to rinse everything properly to get everything out. If the water coming from your tank still feels soapy, then you need to rinse again.

Now that everything is clean, you need to sanitize with an acid based sanitizing solution like Mangrove Jack's Total San.

This is available from home brew shops like Brewcraft and goes for R395 for a liter. This might sound expensive but you only use 2ml per liter of water, so it will last you a very long time.

To sanitize, you will follow the same procedure as with the cleaning, only difference being that you now use normal filtered water at room temperature and you do not need to rinse the system again once it has been emptied. You will notice a lot of foam in the pipes, but this is perfectly normal and it will not affect the taste of your water.

Hope this helps.

(Just for your own safety : Never pour the hot water over the caustic flakes. Always add the flakes to the hot water.)

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04 Oct 2019 @ 16:03:29 pm
JohanMarais
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Wow! What an excellent explanation.

Thank you very much.

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06 Oct 2019 @ 08:04:43 am
Johan Stander
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Wow! What an excellent explanation.

Thank you very much.

You're welcome

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