Water storage

How are you preparing
Frnc
Posts: 4904
Joined: Sat Mar 12, 2022 1:54 pm

Re: Water storage

Post by Frnc »

Who has a 100 litre water container? 25 is difficult to lift. But interesting in principle, and not surprising. Some people add bleach to stored water. Me, I use tablets designed to go into drinking water. I add a normal dose of Oasis when I put fresh water into storage, as a backup to prevent bacteria growth.
jennyjj01
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Joined: Sun Jun 04, 2017 11:09 pm

Re: Water storage

Post by jennyjj01 »

Frnc wrote: Sat Nov 15, 2025 11:40 am Who has a 100 litre water container? 25 is difficult to lift. But interesting in principle, and not surprising. Some people add bleach to stored water. Me, I use tablets designed to go into drinking water. I add a normal dose of Oasis when I put fresh water into storage, as a backup to prevent bacteria growth.
Agreed. The Biggest I can lift is 25L wine fermenter, but that's a struggle. These are generally not practical for keeping indoors. My preference is 2L or 5L. Bottles. Rectangular stackable 5L and 10L bottles are available and if I were storing more water in my garage, I'd use the 5L ones.

Water Butts and wheelie bins are of that 100L order, but even a wheelie bin would be darned near impossible to move when even half full of water.
I think that if I were storing tap water in used bottles, I'd store it untreated and add the puratab just before using.
Graceful Degradation! Prepping's objective summed up in two words. Turning Disaster into Mild Inconvenience by the power of fore-thought

Not Feeling Optimistic. Let me be wrong
Peter
Posts: 267
Joined: Wed Mar 01, 2023 4:21 pm
Location: West Midlands

Re: Water storage

Post by Peter »

We are also changing from 20 litre plastic containers to 10 for our potable water, however we have a FRIEND :lol:
called HANDY BILLY :lol: to help us lift them, with a hook in the shed roof this helps us TACKLE :lol: heavy containers.
GillyBee
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Joined: Tue Apr 07, 2020 6:46 am

Re: Water storage

Post by GillyBee »

Oasis tablets are great. But if SHTF, other options may be helpful. Milton is available everywhere if you (or family/friends) are caught short and it is easy to handle a smaller container although it may be a little wasteful if you only have 1 small container.

There are two ways around the 100l rule. One is to dissolve the tablet in a half litre of water and then use 50ml of that to disinfect each 10l container.
Or break the tablet into 4 and use 1/4 for a 25l container. They often come with dividing lines to let you split into 4 anyway and for more contaminated water the instructions are half a tablet to 25l. So 1/4 to 10l would be a little heavy but not crazy.
Frnc
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Joined: Sat Mar 12, 2022 1:54 pm

Re: Water storage

Post by Frnc »

GillyBee wrote: Sat Nov 15, 2025 9:55 pm Oasis tablets are great. But if SHTF, other options may be helpful. Milton is available everywhere if you (or family/friends) are caught short and it is easy to handle a smaller container although it may be a little wasteful if you only have 1 small container.

There are two ways around the 100l rule. One is to dissolve the tablet in a half litre of water and then use 50ml of that to disinfect each 10l container.
Or break the tablet into 4 and use 1/4 for a 25l container. They often come with dividing lines to let you split into 4 anyway and for more contaminated water the instructions are half a tablet to 25l. So 1/4 to 10l would be a little heavy but not crazy.
Just to be clear, for anyone reading this, we are talking about 2 different things. Milton is primarily designed to steralise the container itself, not to purify the contents of the container. Use 1 tab per 5l, so 2 tabs to steralise a 10 l container. You don't need to rinse. Just empty and fill with clean water.

The 100 l thing is about purifying the water. Purifying water is normally done with Oasis tabs, which are sold in different sizes. I think 33mg tabs do 4-5l, so I put two in a 10 litre container. This is my storage water. I've already steralised the container with two Milton, and emptied.

I'm probably stating the obvious, just to avoid confusion, bearing in mind anyone could be reading this.

Yes you can use Milton is lower doses to steralise the actual water. I tend to use the word steralise for the container, and purify for the stored water.
GillyBee
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Joined: Tue Apr 07, 2020 6:46 am

Re: Water storage

Post by GillyBee »

Frnc wrote: Sun Nov 16, 2025 7:22 am
I'm probably stating the obvious, just to avoid confusion, bearing in mind anyone could be reading this.

Yes you can use Milton is lower doses to steralise the actual water. I tend to use the word steralise for the container, and purify for the stored water.

Thank for making that clear for everyone. I was just thinking about easily accessible routes to drinking water and not about confusion between sterilisation and purification.
jennyjj01
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Joined: Sun Jun 04, 2017 11:09 pm

Re: Water storage

Post by jennyjj01 »

Frnc wrote: Sun Nov 16, 2025 7:22 am Just to be clear, for anyone reading this, we are talking about 2 different things. Milton is primarily designed to steralise the container itself, not to purify the contents of the container. ...

Yes you can use Milton is lower doses to steralise the actual water. I tend to use the word steralise for the container, and purify for the stored water.
Hi FRNC,
I already understood your distinction between sterilisation and purification.
We are not in disagreement, even though we have different practices. Either option is extremely cheap.

My main point is that Milton, Oasis, and some similar products are identical in composition. They are made from Troclosene Sodium, also known as NaDCC. The only differences between them are the physical size of the tablets, the price per gram and the target market. You might recall that I'm a tightwad :)

I don't purify my stored water, but if I did, it would be just before use and not at the time of storage.
I only maintain a stash of purification tabs for TEOTWAWKI water harvesting situations.
Graceful Degradation! Prepping's objective summed up in two words. Turning Disaster into Mild Inconvenience by the power of fore-thought

Not Feeling Optimistic. Let me be wrong
Frnc
Posts: 4904
Joined: Sat Mar 12, 2022 1:54 pm

Re: Water storage

Post by Frnc »

jennyjj01 wrote: Sun Nov 16, 2025 11:06 am
Frnc wrote: Sun Nov 16, 2025 7:22 am Just to be clear, for anyone reading this, we are talking about 2 different things. Milton is primarily designed to steralise the container itself, not to purify the contents of the container. ...

Yes you can use Milton is lower doses to steralise the actual water. I tend to use the word steralise for the container, and purify for the stored water.
Hi FRNC,
I already understood your distinction between sterilisation and purification.
We are not in disagreement, even though we have different practices. Either option is extremely cheap.

My main point is that Milton, Oasis, and some similar products are identical in composition. They are made from Troclosene Sodium, also known as NaDCC. The only differences between them are the physical size of the tablets, the price per gram and the target market. You might recall that I'm a tightwad :)

I don't purify my stored water, but if I did, it would be just before use and not at the time of storage.
I only maintain a stash of purification tabs for TEOTWAWKI water harvesting situations.
Of course that's another option, and is what I used to have in mind. I think I was asking GPT about risk of legionella in water stored over the summer, and it suggested adding to the water at the time of storage, to minimise risk of nasties growing in the first place.

It's one way to use up 33mg tabs anyway, because if you buy 100, chances are you'll throw them all away in 5 years. So, might as well make use of them in the meantime. I keep 60l, so that's 12 tabs twice a year = 4 year supply.