Pristine Water Networks
Water Purification Installer and Supplier
What it does
Pristine Water Networks installs whole-home water filtration and softening systems for families in Berkeley County, SC and the surrounding area. As an authorized Puronics dealer, we deliver reliable, long-term solutions with honest recommendations and expert installation, better water, protected plumbing, and appliances that last.
Free in-home water testing in Summerville, Nexton, Cane Bay, and the Charleston Lowcountry. Owner-operated Puronics dealer. Test your water. Then decide.
Test first. Decide after. A Puronics factory-trained technician tests your water at your kitchen counter in 45 minutes. If your water tests fine, we will tell you. Puronics-authorized dealer, certification scope provided in writing before install. Verify at info.nsf.org We stand behind every install. Full terms provided in writing at your appointment. Summerville CPW meets current federal drinking water standards, but the EWG Tap Water Database has detected five PFAS compounds in its water. PFUnA was measured at 1,183 times the EWG health advisory level. CPW has begun a $96 million remediation project targeting 2029-2031; interim home filtration is recommended. The highest PFAS multiplier…from prstnwtr.com
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Scroll through all 43,252,003,274,489,856,000 reachable Rubik's Cube permutations.
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Hi HN, I built Eigendrum, a web tool that solves the 2D wave equation for arbitrary shapes so you can hear what they sound like as drums. How it works: * Solves -∇²u = λu using finite element analysis (Kφ = λMφ) on a triangle mesh. * Validated to <0.1% error against closed-form solutions for circles (Bessel zeros) and rectangles. * Sound model factors in strike location, Rayleigh damping, and mallet width. * Includes Kac drums I & II to demonstrate identical sound spectra from different geometries. * No frameworks, build steps, or dependencies. Repo and tests:…
Life & fun · 26d ago · baselashraf81.github.io
Launched alongside, August 2026
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Life & fun · 10d ago · louisabraham.github.io


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Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com