Crush Pot Rehydration Drip Method
Small, repeated shots expand the block evenly and rebuild its micro-pore structure automatically. This is the preferred method.
Why drip is preferred
Repeated 5% shots draw water through the block by capillary action, expanding it evenly and restoring the interstitial pores that hold the correct air-to-water ratio. A single soak does not rebuild that structure. For the best possible result, finish with the four-corners pass in the Recommended Method. No drip? Use the Hand Method.
Drip rehydration, start to transplant
Stage the pots
Set Crush Pots on a clean flood tray or bench at final spacing, label side out.
The label size is the nursery-pot size the block expands to once hydrated — the compressed brick ships smaller. Plan tray space for that hydrated footprint.
Seat the emitters
Insert drip stakes into the top face of the block, distributed evenly so wetting fronts overlap. Seat each stake firmly until the barb sits flush against the coir.
Match emitter count and flow to the pot size — see the Shot Size Calculator for per-emitter shot volume and run time.
Set the shot scheduleCore step
Program 5% shots every 15–20 minutes — roughly 12–14 events — until saturation. Small repeated pulses pull water through the block by capillary action and rebuild the interstitial pores that hold the correct air-to-water ratio.
Do not rehydrate in one continuous soak — a single event fills the pores with water and locks out air.
Let it expand
The block lifts and fills the bag as it wicks. Because hydration is gradual and even, the pore structure reopens on its own — no manual aeration is required with the drip method.
Check that all stakes stay seated as the surface rises.
Confirm saturation
Run shots until the block has filled the bag and the first runoff appears at the base. Target field capacity is ≈55% VWC for the Crush Pot blend.
If a pot lags, verify its stakes are seated and flowing.
Even surface, consistent color top to bottom, free runoff at the base = saturated.
Place the sensor
Set the substrate sensor 1.5″ from the tray, above the perched water table, with probes in full contact with the coir. This reads the active root zone rather than the saturated base.
Transplant
Open a dibble in the centered dimple and set your plug, then irrigate from field capacity.
Tune your early shots to the propagation medium. A rockwool cube holds water at a different matric potential than coco — give it small, frequent shots so the surrounding Crush doesn't wick the cube dry and stress the transplant.
CharCoir Coco Coin is the same coco as the Crush Pot, so there's no matric-potential mismatch at the interface. The Coin-to-Crush combo transplants with zero stress — faster rooting and veg, and a stronger finish.
