AUTOPOT 9MM BLUE SUPPLY TUBE PER METRE

Description

AutoPot 9mm Blue Supply Tube Per Metre is the standard delivery pipe used in AutoPot gravity-fed hydroponic systems to connect the nutrient tank to individual growing trays via the AquaValve. We have been recommending AutoPot systems and their precision components to UK growers since 2017 as one of the most reliable passive hydroponic growing methods available, and the 9mm blue supply tube is the capillary that carries nutrient solution from the tank to each plant — its quality and integrity is central to the reliable operation of the whole system.

Why Correct AutoPot Supply Tube Matters for System Reliability

AutoPot systems operate entirely on gravity pressure — there is no pump to overcome restriction or force solution past a poor connection. The 9mm tube must be able to pass an adequate flow rate of nutrient solution at the gentle gravity pressure provided by an elevated tank at typical operating heights (20–50cm above the trays). The AutoPot 9mm blue tube is manufactured specifically for this system, with an internal bore diameter and wall thickness calibrated to provide the flow characteristics the AquaValve requires for correct filling and shut-off behaviour. Third-party tubing with slightly different bore diameters can cause the system to overfill, underfill, or behave inconsistently at the AquaValve — problems that manifest as waterlogging or drought stress in your plants. The blue colour also provides a useful visual indicator of tube condition and algae growth, allowing early detection of light ingress or contamination issues before they affect plant health. Sold per metre, you can purchase exactly the length you need for your specific system layout.

How to Use AutoPot 9mm Blue Supply Tube

Cut the required length of tube using scissors or a sharp knife for a clean, square cut. Push firmly onto the 9mm fittings — AquaValve inlets, cross connectors, tee fittings, and tank outlets — until the barb is fully engaged. For long runs between tank and trays, secure the tube at intervals with cable clips to prevent sagging that could create air locks. Check all connections for leaks during the first filling cycle by observing along the tube run for drips or wet spots. Replace sections of tube that show kinking, discolouration, algae growth, or brittleness that could indicate UV degradation from light exposure.

Browse our full AutoPot range for complete systems, all fittings and connectors, replacement AquaValves, and everything needed to build or expand your AutoPot passive hydroponic setup. Buy enough tube per metre to allow for your complete system layout with some spare for future repairs.