Water Purifier: Needs charcoal (biomass (e.g. rotten potatoes, or shredded and then centrifuged potatoes) dumped through an Arc Furnace). And then the WP should do something. But you can also use your reallife wits. What do you do with water that is polluted, and you don't want to use filtration on it? SPOILERS follow:

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You change it to its gaseous state and then you change it back to its liquid state.

Water Purifier needs Charcoal to work. And you have to put the cleaned water it outputs into separate storage. Don't mix it back in with the polluted stuff until it's all clean, otherwise it's going to take forever.

Your other option is to boil the water. Either using heat, or using the Evaporation Chamber. Polluted water evaporates into clean steam, which you can then condense back into clean water.

Note when making charcoal:
If using an Arc Furnace, make sure there is no oxygen in the room. Biomass outputs hot volatiles when smelted into charcoal, and will set fires in the presence of oxygen. Even in Mars' thin atmosphere.

Originally posted by Purashu:

Note when making charcoal:
If using an Arc Furnace, make sure there is no oxygen in the room. Biomass outputs hot volatiles when smelted into charcoal, and will set fires in the presence of oxygen. Even in Mars' thin atmosphere.

You don't have to spin the reagent down to biomass. If you're making charcoal you can put the plants/rotten food into the recycler and take the output and put it right into an arc furnace. It should be fine.

Yeah, as long as there was nothing else in the recycler. It loves to scrape out 0.001g Copper along with the food and then the Arc Furnace won't work.

Also goes for non-alloy single metals, if there's nothing else in the batch you can Arc Furnace it directly. Pretty nice for recycling the useless stuff you start with like flags, flares, water canister, empty filters, etc that are just pure iron.

Originally posted by powerkek:

Yeah, as long as there was nothing else in the recycler. It loves to scrape out 0.001g Copper along with the food and then the Arc Furnace won't work.

Also goes for non-alloy single metals, if there's nothing else in the batch you can Arc Furnace it directly. Pretty nice for recycling the useless stuff you start with like flags, flares, water canister, empty filters, etc that are just pure iron.

It's so frustrating when it decides to do that. I will usually completely disassemble the recycler and rebuild it when that happens.

Spare yourself the charcoal and consider using a boiler. I got one installed in my base and it fully automatically purifies water. Granted, the cooling cycle is much faster for me, since I play on Europa, but I'm sure you can figure something out.

Basically, Build an insulated furnace, pump the polluted/mixed water into pipes inside the boiler chamber, then extract the steam via a purge valve. That already gets rid of the polluted water, but I run the entire material through a water filter, because I tend to pressurize water pipes with Nitrogen and don't want gases where they don't belong. Next, pump the steam somewhere, where it can cool properly. I pump it into a gas line in the planet's atmosphere, then pass it into a liquid network next to it though a condensation valve. Finally, pump the water back into your network once it reaches a workable temperature.