Welcome to your RBTI testing guide. Before you begin, check that you have all your supplies ready below. Then choose the full guided walkthrough — which takes you step by step through every test in order — or jump directly to any individual test using the reference page.

Before you begin — check your supplies
Urine specimen cup (clean)
Brix Refractometer (0–10%) — sugar test
Conductivity tester (EC20) — salts test
pH paper 5.5–8.0 strip Start with this one for all pH readings
pH paper 3.0–5.5 strip Backup only — use if your reading hits the low end of the 5.5–8.0 strip
Distilled water
Graduated cylinder (100ml) — for measuring distilled water
Universal Extraction Solution
Test tubes with caps
Pipettes (3ml transfer pipettes)
Baking soda + small glass bowl with ½ cup water Only needed if you are doing the nitrate & ammonia test yourself
Phone flashlight — debris test
Medical gloves & paper towels