Salinity INCREASE

[BryanM]

Something isn't right if you really added RODI and salinity readings went up. LIkely calibration issue with the way you're testing salinity.

Adding rodi cannot increase salinity.

 

[Nano_Man]

yes an calibrated

Can I ask what type of tester you are using please

 

[KStatefan]

no

You can not add RODI water and have the salinity increase.

 

[X-37B]

Still does not answer my first Question of jump Up in salinity not down

?
If you added 2g's and sg was 1.028 then it was way above that before adding the 2g's.
Am I missing something?

 

[Nano_Man]

?
If you added 2g's and sg was 1.028 then it was way above that before adding the 2g's.
Am I missing something?

Correct pal

 

[Freenow54]

?
If you added 2g's and sg was 1.028 then it was way above that before adding the 2g's.
Am I missing something?

It must have been. I did not check it before. Now after another hour it has dropped to almost normal. Jumped the gun i guess Thanks for the help. Defiantly will hook up an ATO

 

[Kooma]

It is scientifically impossible for your salinity to increase when adding water, unless one of three things occurred. You added saltwater, your before test was inaccurate, your after test was inaccurate.

You cannot add fresh water to a container of saltwater and have the salt content increase.

 

[Freenow54]

It is scientifically impossible for your salinity to increase when adding water, unless one of three things occurred. You added saltwater, your before test was inaccurate, your after test was inaccurate.

You cannot add fresh water to a container of saltwater and have the salt content increase.

Absolutely Logical why do you think I was freaked I only ever add fresh Rodi just neglect and let it get too low like I said good advice on Auto top up

 

[BryanM]

Defiantly will hook up an ATO

This will help significantly!

 

[Kooma]

Absolutely Logical why do you think I was freaked I only ever add fresh Rodi just neglect and let it get too low like I said good advice on Auto top up

It would have been worth while to start with not knowing the salinity before adding water. That would have answered the question in a single post.

 

[Freenow54]

This will help significantly!

Any suggestions as to manufacturer/ see quite a few

 

[Freenow54]

It would have been worth while to start with not knowing the salinity before adding water. That would have answered the question in a single post.

I admitted that if you like I will cut my Wrists

 

[BryanM]

Any suggestions as to manufacturer/ see quite a few

Tunze is what I use and many others here.

 

[Nano_Man]

Don't do that it will hamper your water changes

I admitted that if you like I will cut my Wrist

 

[Vivid Creative Aquatics Verified Sponsor]

I recently had a similar situation where the sanity levels in our office tank would slowly creep up over the course of a week or two, despite proper topping off with an automated ATO.

It took a while but I finally discovered the source of the issue. It ended up being a slowly failing DC pump power supply. It started providing less and less power to the pump and thus slowed the pump down. As it got slower, the water level in the sump return chamber would not account for the total evaporation, and as a result, the ATO would add less an less water, causing the salinity to slowly increase.


I don't know if you have a DC pump, but if you do, check it and see if there's a way you can verify the amount of flow it is producing. If it's not delivering enough flow, you may need to clean the pump and or you may have a power supply beginning to fail.

 

[JumboShrimp]

Reminds me of this Tee-shirt.