I'm pretty sold, and very happy with the Berkey, for past 3 years, the filters last about 14-16 months at 2.5 gallons used daily.
Go here, read these particular Q&A's https://www.bigberkeywaterfilters.com/h ... cles-video
The Black Berkey Red Food Coloring Test (Test your filters are working to design specs)
Berkey Water Filters Vs Reverse Osmosis
Berkey Water Filters Vs Distillation
Berkey Water Filters Do Not Contain BPA
Berkey Filters and TDS Readings
Berkey is not inconvenient at all, even filling manually is easy & fast. I hooked mine up to a 1.2 gallon per minute switched electric pump with water tubing to it and an LED water level indicator. Used a PEX elbow, took out the lid knob, elbow & tubing through the hole, did drill it out to 5/8" for the fitting. I love to figure out and then do mods.
If I can find the JPG I took of what all the Berkey filters out, I'll post it in PDF Zone. It does filter out 99.9% of just about everything. I have the black filters and the white ones for fluoride, they last about 6,000 gallons, or more depending on how dirty the water it is with sediment. I have not tried the white ceramic filters. I still have a full set of B/W in storage. Over in the Wiki requests, I did a post on DIY a home made Berkey, using 2 large SS stock pots. It is easy, I'd made one for a friend. A fella on Youtube made his out of two 5 gallon buckets.
Extremism on details took me to using shiny SS
Yep, I'd posted a link to the most brutally realistic SHTF prepper site; that one man who was in Bosnia in SHTF scenario. He had given a lot of real advice. LOL, the Library is only 1 tab over. I'm building up my Library for bartering entertainment, using 2 & 4 GB microSD cards. Picked up a gross of tiny players a while back. 1.5" x 1.5" in all colors. People will likely want those, someday.
You keep prepping. Got a huge midwest storm coming in, according to Accuweather.