Water sieve outputs clean and salt water

Could there have been some in the pipes beforehand?

The sieve will only sieve polluted water.  Clean water and salt water get passed through without energy use or heat generation.

The sieve wont produce anything but convert pwater to clean water. The salt water has to have an origin somewhere else. Either a pump-pool was contaminated, or your dupes delivered saltwater to a bottle emptier set to all.

I have not checked if it is still working the same way since but can.

 

The water being pumped to it had been filtered previously and none of the polluted water being fed to it was salt water nor causing damage to other buildings using the polluted water before it went to the sieve. I checked all the pipes and confirmed there was no salt water in that system. I waited and watched the sieve and specifically saw the nodes of salt water exit the sieve.

 

It might just be a fluke since I didn't see it in any other forums and was not yet reported. I will see if I can reproduce now.

I can't get it to recreate now but it is has been a lot of cycles since. Hopefully just a weird fluke/circumstance.