Small ATO accident

[Schulks]

Yesterday I changed my ATO pump and last night it dumped around a gallon into my ~48 total gallon system. Parameters were Alk 9.0 and SG: 1.025. Now Alk is 8.5 and SG is 1.0247 (tropic marin hydrometer). Would that salinity change cause that big of an alk drop?

I measure alkalinity every day and I happened to measure salinity the day before.

I plan on just raising the salinity back up with evaporation I was in the middle of raising it to 1.0255.
That is all I should do right?

 

[SpyC]

If you have corals, that .5 drop could be normal usage by them.

Yea, just let the water evaporate to raise your salinity slowly and back to the previous reading.

 

[Schulks]

I just figured out my soda ash doser was not primed. My alks been dropping about 0.3 a day. I also dose AFR. I tested the doser yesterday and it worked. Then today alk continued to drop so I tested it again and nothing came out. It is only 2 ml/min so I was not running it long enough to fully prime.

yeesh...