Can i filter polluted germs water and use in sinks?

[jestor]

Can i filter polluted germs water and use in sinks?

[chaney]

Quick answer is probably yes depending on exactly what you meant to ask.

TLDR; Lavatory/Sink water -> Sieve -> Lavatory/Sink works.

A Water Sieve will accept Polluted Water and convert it to ("clean") Water.
It also turns Filtration Medium into Polluted Dirt as part of the process.
See https://oxygennotincluded.gamepedia.com/Water_Sieve for a description.

Now here is the tricky part ... if the input Polluted Water contains GERMS, the output "clean" Water will also contain those Germs, as will the Polluted Dirt. For recycling water into a Sink or Lavatory, it's not really a problem, surprisingly. If you use the water for other things, the germs will transfer, and ingested Food Poisoning can make Dupes ill.

I "role play" the game so like to clean things up - I don't want to wash my hands in water enhanced with E. coli and don't want my Dupes to either. Letting the germy water sit in a Reservoir in a Chlorine filled room for a bit takes out the germs effectively. I disinfect before Sieving so the Polluted Dirt isn't germy. Some advanced players will see this as a practical waste of time and offer perfectly functional "better" methods - but this is what makes me happy so I do it.

If you are patient enough, the germs will die off in the clean Water, but it takes some time.

[Cotaks]

poeluted water - sieve - toilet and sinks. Yes nop problem you can build it in a closed loop, just make sure you build an overflow for poluted water, toilets/sinks produces more poluted water then it takes, so use a liquid shutoff with a timer or a bridge to get rid of acces poluted water.

[Elidrin]

There are basically 3 parts to total water purification.

1. First is the sieve, it will convert polluted water to water, but does not remove germs. If you just want to use in sinks, showers and toilets. Great for your first plumbed bathroom, just do not let this water get near your 'cooking water'

2. Next comes the chlorine room, you store the germy water until the chlorine kills off the germs. If you are waiting to recycle toilet water for use in the soda or espresso machines you should do this.

3. Last (and probably most important) is lowering the temperature to 15 to 20C. Using the sieve (generally speaking) raises the temp which can cause new players to have a heat death problem. Simply put no matter how good your insulation to the outside, pumping water to your bathrooms and plants will affect your heat. A well designed plumbing system with cooler water will assist your efforts in keeping your base at a comfortable temp that also doesn't kill your plants. Creative uses of the cold biome will treat you well for hundreds of cycles without the need for a aquatuner.

By sending the water out of your base to be cleaned of pollution, then germs and lastly lowering the temp you will have water that can be used for anything when it returns to your base.

[gimmethegepgun]

Originally posted by Elidrin:

Using the sieve (generally speaking) raises the temp which can cause new players to have a heat death problem.

No it doesn't. The Sieve doesn't alter the temperature of the water. It just generates a paltry 4 kDTU/s (equivalent to 8 Lamps).
The Lavatory's output pwater is a fixed 37C, regardless of input water temperature. You definitely shouldn't cool any water you send to the Lavatory for this reason, but not only that, you should try to put heat into the water if possible so that it destroys it when the Lavatory is used.

[Elidrin]

Where to begin:

The Sieve doesn't alter the temperature of the water. It just generates a paltry 4 kDTU/s (equivalent to 8 Lamps).

That is the heat the machine generates to itself if it is running constantly it gets rather hot. The temp of the water comes out depending on the machine temp, temp of the filtration medium and water. check the patch notes. In theory you can freeze water in the pipe by using a frozen sieve, loaded with frozen sand, and already cod water. Never tried nor seen the use in trying it.

The Lavatory's output pwater is a fixed 37C, regardless of input water temperature.

Dupes are 37, lavatory output is 30. If you don't believe me click a lavatory while someone is using it.

In the base I am currently working in my sieve is raising water temp by .2C each pass, at 30.2 you have dying plants.

I personally pipe in 19-20C water to my base it's the level I am personally comfortable, once you have a system in place you can go as cold as you like. You can see from the image of the heat map exactly where my plumbing runs and the effect it is having on my base which is surrounded by heat,

https://steamcommunity.com/sharedfiles/filedetails/?id=2397153401

This base currently has 19 of the planned 20 dupes, and the bathrooms and rec rooms are major players in keeping my base cool. I have 1 pipe out to be treated and 1 pipe in to run bathrooms and rec rooms, why make the plumbing more difficult than it has to be.

https://steamcommunity.com/sharedfiles/filedetails/?id=2397164822

Using a cold biome to cool water is cheap and reliable. Here is a overly complicated version. I started with a circuit passing thru pwater (mostly urine). Later I added a shipping system that accepted P-Ice to cool the system down. Much later I added the ability to quickly cool the system down using the aquatuner attached to my volcano tamer (found a gold volcano in the same biome). At 220W including the sieve it's a fine way to meet all my water needs and I don't have to worry abut what water goes where. Heck I even dump my hot gold into it to bring it down to a nice chilly temp (about -5C).

https://steamcommunity.com/sharedfiles/filedetails/?id=2397169347

[gimmethegepgun]

Originally posted by Elidrin:

The Lavatory's output pwater is a fixed 37C, regardless of input water temperature.

Dupes are 37, lavatory output is 30. If you don't believe me click a lavatory while someone is using it.

So I did that and both of us are wrong. With a 37.0 dupe, a 25.6 Lavatory, and 25.9 input water, the pwater produced was 32.2C. I haven't tested any more than that but it should be noted the weighted average of 5kg at 25.9 and 6.7kg at 37 is 32.256.

[Elidrin]

Originally posted by gimmethegepgun:

Originally posted by Elidrin:

Dupes are 37, lavatory output is 30. If you don't believe me click a lavatory while someone is using it.

So I did that and both of us are wrong. With a 37.0 dupe, a 25.6 Lavatory, and 25.9 input water, the pwater produced was 32.2C. I haven't tested any more than that but it should be noted the weighted average of 5kg at 25.9 and 6.7kg at 37 is 32.256.

:) Works for me

[Makeithappen]

When water goes into liquid storage tanks doesn't it equalize the water to the same temp? I remember listening to a Francis John video (might be outdated) and I recall him mentioning water pooled into one storage tank does this or it equalizes germs or something.

[Angpaur]

Yes, it does equalize temperature immediately. Pretty useful feature for cooling loops when you want a stable temperature to be output.

[ewpayne]

You could turn the polluted water into steam. Then cool it back down to an acceptable level.