Landing page
The full rain-to-glass story: how it works, the numbers, honest care notes, comparison, and the overseas-sponsorship offer.
The main pieces
The two anchor pieces. Link people to the landing page for the full rain-to-glass story, or print the poster for noticeboards, events and site visits.
Rain-to-glass poster
Page 1 tells the story; page 2 covers care and the honest catches. Print-ready PDF at true A3, or view the live HTML.
Brand & sharing assets
For anyone making their own pieces: the preview card that appears automatically when kalla.me is shared in a chat or feed, a QR code for print, and the logo in vector and PNG.
QR code
Links straight to kalla.me, with the address printed underneath — as on the poster — so people can type it if they can't scan. Drop it on any print piece; a plain code is there too.
Brand marks
The sun-over-water logo (vector — scales to any size) and the browser/app favicon.
Ready-made social posts
Eight posts, each making one point about Källa. Every image is self-contained — you can post it with no caption at all (that's the idea for WhatsApp forwards) — but each one also has ready-written captions for Facebook groups, Instagram and X: open Captions on any post and hit copy. Each post comes in three sizes; pick the one for your platform:
Square 1080 × 1080
Facebook & Instagram feeds, and WhatsApp — forward it like a photo.
Facebook & Instagram feeds, and WhatsApp — forward it like a photo.
Portrait 1080 × 1350
Instagram & Facebook — the tall crop takes up the most screen.
Instagram & Facebook — the tall crop takes up the most screen.
Landscape 1600 × 900
X (Twitter) posts, and anywhere a wide image sits better.
X (Twitter) posts, and anywhere a wide image sits better.
On paper instead? The six key posts come as A4 print sheets, two per page — ready to hand out or pin up, in two layouts: uniform (all six the same wide shape) or best-fit (each post in its ideal shape — wide cards stacked, tall cards side by side). Cut each sheet in half for two A5 cards.
Sixty built. Zero abandoned.
The track record: 60 systems on this design in remote communities, every one still in daily use. The strongest first post for a new audience.
The filter that improves with age
The "huh, really?" post: the filter is alive — a living layer of microbes does the cleaning, so it gets better with use. No cartridges, 10+ year life. Great conversation-starter.
The £0.00 receipt
A till receipt itemising the monthly running costs: chemicals £0, cartridges £0, mains £0. The most forwardable image here — made for WhatsApp.
The rain on your roof is drinking water
The whole thesis in one line, with the four-stage journey drawn underneath. Works as a pinned or intro post, and pairs naturally with the carousel.
Powered by gravity and sunlight
No pump, no chemicals, no mains — it keeps running when the grid doesn't. Lands hardest right after storms and power cuts; keep it ready.
Four ways to drink rainwater
Källa vs reverse osmosis vs boiling vs raw, row by row. Reference content — people save it and share it in "which filter?" threads. Landscape suits X best.
One unit. 60–80 litres a day.
The numbers: daily output, flow rate, filter life, solar power. For the detail-minded — a good reply when someone asks "but how much water?"
Källa. Say "SHELL-ah".
Swedish for source — the name, how to say it, and what Källa is in one breath. An intro or profile post rather than a lead card.
Carousel · follow a raindrop
One post, four slides. Upload all four images to a single Instagram or Facebook post in order 1 → 4 and it becomes a swipeable story — a raindrop's journey from roof to glass. On X, attach all four to one post as a picture thread. Captions are under the card.
Your rainwater → the living filter → the UV-C reactor → your glass
Each slide explains one stage in plain words. Slide 4 carries its own "see the whole journey" note, so the set works even if people don't read the caption.
Photos & illustrations
For variety between the drawn cards. The photos set the feeling — off-grid life with good water — and the illustrations show the whole system in one image. They work with any caption or hook from this page, or as blog and newsletter headers.
The feeling of it
A narrowboat galley at golden hour, and a glass of clear water in low sun. Use them when a real-feeling image will stop the scroll better than a diagram.
The whole system, hand-drawn
Roof → living sand → UV-C reactor → glass in one image: a warm watercolour and a pen-and-ink technical sketch. Good standalone posts or article headers.
One-liners · hook bank
Fifteen short lines for comments, statuses, bios, replies — anywhere a full post is too much. Copy and use them as they are.
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Download everything
The same materials as a flat list, if you'd rather grab files directly.
Landing pageLive web page — the full storyHTML ↗
A3 poster — webLive HTML version of the 2-page posterHTML ↗
A3 poster — printTrue-A3, print-ready PDFPDF ↓
Social share card1200 × 630 link-preview imagePNG ↓
QR code — with web addressPoints to kalla.me, address printed underneath (as on the poster)PNG ↓
QR code — plainPoints to kalla.me, code onlyPNG ↓
Logo — vectorSun-over-water mark · scales to any sizeSVG ↓
Logo — rasterSun-over-water mark · 640 px transparent PNGPNG ↓
FaviconBrowser / app iconPNG ↓
Social pack — share images8 posts in 3 sizes + 4-slide carousel + 2 photos + 2 illustrations (galleries above)PNG ↓
A4 print sheets — uniform layoutThe six key posts, all wide, two per page, print-readyPDF ↓
A4 print sheets — best-fit layoutThe six key posts, each in its ideal shape, two per page (cut for A5 cards)PDF ↓
Social pack — captions & hooksThe same captions shown under each post above, as one plain-text fileMD ↗