Replacement water

[Bigdon]

Hello

Could someone help me please. I want to make up some salt water to keep for emergencies and water changes. I know heat effects salt levels. If I mix the salt at 25 deg then let it cool and then warm it again before I add it to the tank would the salt level stay the same. Also is it ok to store water without it harming it

 

[Jschier]

You can make water to have on hand, but always check the salinity/temp before adding it to your tank. Ideally, mix the water and have a heater/pump to keep it circ and at temp, ready to use at any time. Then use it for your pwc and then make more.

 

[Bigdon]

You can make water to have on hand, but always check the salinity/temp before adding it to your tank. Ideally, mix the water and have a heater/pump to keep it circ and at temp, ready to use at any time. Then use it for your pwc and then make more.

Once it's mixed can I store it cold and in a barrel or does it need to be kept heated and circulated

 

[Rmckoy]

I read that storing RODI water is ok .
But read mixed salt water with RODI goes bad ?

 

[huma-huma]

Here's how I look at it. Rodi water is about 99-100% pure water, there's really nothing that could breakdown or dissipate in it.The salt mixes we use to make saltwater reintroduce trace elements into that water, so there is a chance that some of those elements could alter/breakdown/ dissipate given enough time sitting in a container. This is why I personally don't keep mixed sw on hand. I do keep rodi water but that's it