Growth Technology pH Probe Cleaner
Growth Technology pH Probe Cleaner
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Order by 3pm Mon–Fri — we aim to post same day · FREE Express Delivery over £60 · 1–2 working days · Free Wembley pickup
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Description
Bring a sluggish pH probe back to accurate readings
Growth Technology pH Probe Cleaner is a dedicated reconditioning solution for pH pen and meter electrodes. Nutrient residue, algae and mineral scale slowly coat the glass bulb, and that film is exactly what makes an older probe read slowly or drift off true. Clearing it restores a clean, active electrode surface so readings settle quickly and calibration holds.
Key Benefits
- Removes residue and scale from the glass electrode and reference junction
- Reconditions sluggish probes that have slowed or started drifting
- Restores response time so readings settle in seconds rather than minutes
- Extends probe life, delaying the cost of a replacement electrode
- Fits any routine, used alongside your normal calibration and storage solutions
Slow, drifting pH readings from a fouled electrode
A probe that reads slowly or drifts between calibrations is almost always fouled rather than faulty. The glass bulb needs a clean surface to sense hydrogen ions; nutrient film, algae and mineral scale insulate it and throw your pH off, which in turn feeds nutrient lockout and uptake problems in the reservoir.
How to Use
- Soak the tip: immerse only the electrode bulb in the cleaner for the time stated for your meter, typically 10-15 minutes
- Rinse well: rinse thoroughly with clean or RO water before anything else
- Recalibrate: follow with a fresh pH 4.0 and 7.0 calibration, then return the probe to storage solution
- When to use: whenever readings feel slow or drift, or as routine monthly maintenance

FREE Express Delivery on orders over £60. We aim to post same day on Express Delivery — order by 3pm Mon–Fri — and delivery takes 1–2 working days. A few harder-to-stock or large, bulky items can take a little longer — we'll tell you if that applies to your order. Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.

