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Questions, feedback or partnership enquiries — we'd love to hear from you.
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Contact Info
Email
info@writixai.com
Response Time
Within 24 hours
Website
app.brakeshub.com
Quick Help
Common Questions
Yes! All 6 water quality calculators are completely free
with no signup required.
We link to products on Amazon via affiliate links.
We don't sell directly — we help you find the best product.
Our tools use WHO and EPA water quality guidelines.
For legally certified results, consult a certified lab.