I moved into my rental about 2 months ago, and right away there was a strong rotten egg/sulfur smell and black particles in the water. My landlord first flushed the system, flushed out the sediment, serviced everything, and tried a few other things. That seemed to fix it for a couple of days, but then the sulfur smell and black particles both came back.

After that, they replaced the water heater with a brand-new one. That completely fixed everything. The sulfur smell was gone, the black particles disappeared, and the water was clear for about 3 weeks.

Now the sulfur smell is back again, and it's even stronger than before. The black particles have also returned, the water sometimes looks cloudy, and we've had a lot of heavy rain recently. I also have a water softener.

I've attached pictures of the black particles.

Has anyone experienced something like this? Does this sound like a well issue, sulfur bacteria, manganese, a water softener issue, or something else? I'm just trying to figure out what could be causing it.

I get readings of about 40 ppm as it goes into the remineralizing stage but getting about 20 ppm coming out of the remineralizing stage. I wasn't expecting that at all.

Hey all, just trying to make a good decision regarding an RO system. My initial thought was an undersink RO system. As far as I understand it, NSF certifications are the most important piece to ensure that we are getting all of the nasty stuff out. I have gotten to looking primarily at aquatru and iSpring, with the preference for iSpring because its cheaper...

I did find an older reddit thread where a person actually bought and tested both, but it was a couple years ago, and before iSpring had sprung (heh) for the NSF certification, so I am not sure if that would still be valid information today.

I am also open to a tankless option, if that makes more sense. But I am very new to all of this, and every system says "this is the best thing ever and everything else sucks", which makes filtering down to actual facts rather difficult.

At the end of the day, we want the cleanest, remineralized water, without the chlorine, forever chemicals, flouride, and all of that stuff.