Feed & EC
EC readings do not match
First compare the test methods, then compare the numbers. A supplier’s extraction result and drainage from a fertigated crop describe different samples.
Check with DripFind your next step →Feed & EC · WITH DRIP
Why is a drainage sample different after sitting in the gutter?
Collect samples that represent the question being investigated.
Teral grower guidance · Updated 27 October 2026
DripYour feed & ec guideTHE COCOPEAT CONNECTION
Why the root zone matters
A pooled gutter sample may combine old drainage, cleaning residues and several coir bags.
01 / OBSERVE
Three checks before you change anything
- Use clean collection equipment and label the source.
- Record whether the sample is fresh bag drainage or mixed gutter water.
- Check storage time and laboratory handling instructions before analysis.
02 / NARROW IT DOWN
Where was it collected?
Choose the closest observation for a suggested next check.
Directly from a designated bag
Record timing and method so later samples are comparable.
From a shared gutter
Interpret it as mixed drainage, not an individual bag’s root-zone result.
From an old standing puddle
Recollect an appropriate fresh sample before making crop decisions.
03 / TAKE THE NEXT STEP
Leave with something useful
Choose the sample location before testing rather than after seeing an unusual number.
Keep in mind
Do not compare fresh feed with an unidentified old drainage sample as a precise input-output balance.
Discuss this with Teral →CONNECTED QUESTIONS