Stuff growing on new brita filter?

Discussing clean water solutions from brita pitchers to whole house reverse osmosis units.
Is this a pine marten? [Eastern Oregon]
This subreddit helps users identify animal species from pictures, videos, audio or calls, tracks, dens, scat, etc. All ID requests should include the animal's LOCATION (country, state, city, name of ocean or coast). This sub is NOT for identifying breed info for cats/dogs or identifying insects/parasites. Comments should be helpful or educational only, and advice should be legal and humane. Welcome!
SUP spots near Bar Harbor?
A place to ask questions and seek advice on living, visiting, and/or moving to Maine. Feel free to ask anything!
NPS uniform ordering tips/recommendations?
This subreddit is a place for rangers to talk about their experiences, trade stories and spread knowledge.
Gear for NPS park ranger (interp)?
This subreddit is a place for rangers to talk about their experiences, trade stories and spread knowledge.
Design my East Coast U.S. Road Trip!

/r/roadtrip is your source for everything road trip related. Whether you enjoy traveling by motorcycle, car, or recreational vehicle this is your destination for everything related to road trips!
Moving to Hettinger?
Official subreddit for all things North Dakota.
Why does everyone on the boat have such a stick up their ass?
The unofficial subreddit to chat about all the WOW moments while sailing with Royal! Check out the pinned FAQ before asking a question! Have a quick question not answered by the FAQ? Write it in the comments on that post! Feel free to add a flair to show off your Crown and Anchor status and utilize the post flairs to tag your post!
What birds are these?
The place for your bird identification needs and challenges.
Thanks for nothing, Target.
The subreddit by Target team members for Target team members. This subreddit is neither affiliated with nor endorsed by the Target Corporation.
Thoughts on Explorer of the Seas?
The unofficial subreddit to chat about all the WOW moments while sailing with Royal! Check out the pinned FAQ before asking a question! Have a quick question not answered by the FAQ? Write it in the comments on that post! Feel free to add a flair to show off your Crown and Anchor status and utilize the post flairs to tag your post!
Just a reminder

All Things North Carolina
Is Aerie still accepting bra donations?
Because everyone who wants one deserves A Bra That Fits!
Visiting in early October + hidden gems!
Everything related to Olympic National Park located on Washington's Olympic Peninsula.
Who is this odd looking guy? [Masai Mara, Kenya]

The place for your bird identification needs and challenges.
Moving to Joseph! Any tips?
The subreddit for Oregon.
What to do in Charlotte for my birthday?
A subreddit for Charlotte, North Carolina. Where residents and visitors alike can share news, events, gatherings, stories, and more. Tirades, Welcome to Charlotte, Things to do, Buying/Selling, and Charity are all weekly topics.
Last min trip- places to stay??
All about Mount Rainier :Pics, Videos, News, Memories, etc.
How to get my crested gecko to like me more?

A cozy place for anyone who loves cold-blooded creatures of the world.
Biological science technician trying to climb the career ladder
This subreddit is for all those interested in working for the United States federal government. Since the application process itself is often nothing short of herculean and time-consuming to boot, this place is meant to serve as a talking ground to answer questions, better improve applications, and increase one's chance of being 'Referred'. This subreddit is not affiliated, sponsored, or in any way supported by the US Federal Government.
Things to do in Northern Idaho
Idahoans' Gem State subreddit!