A small clean pool in the sump can be normal because it keeps seals wet. Water above the filter, dirty standing water, odor, a drain error or backflow from the sink is not the same condition. First, compare the water line with the filter/sump geometry and note whether it is clean or dirty.
What this covers
- A dishwasher after a completed cycle with no active drain error
What it does not cover
Try in this order
0 of 9 completedEstablish the exact starting state
ReversibleCompare the water line with the filter/sump geometry and note whether it is clean or dirty.
Separate the fault or decision boundary
ReversibleRun Cancel/Drain and inspect filter, air gap, disposal inlet and hose high loop.
Apply the narrowest correction
ReversibleClean the accessible drain path and correct sink backflow only when the water is excessive or contaminated.
Look at where the water sits and what it looks like
ReversibleAfter the cycle, check whether the water is only in the sump below the filter, and whether it is clear, cloudy or smelly. A small pool of clean water in the sump is often intended.
Run Cancel/Drain and inspect the drain path
ReversibleUse Cancel/Drain and look at the filter, the air gap, the disposal inlet and the hose's high loop. Water above the filter or dirty water points to a slow drain or a blockage.
Clean the drain path and test with the sink
ReversibleClean the accessible filter and drain parts, and correct backflow from the sink only if the water is excessive. Run an empty rinse and check again after ten minutes and after using the sink.
Measure what you see against one to two cups
ReversibleA thin film around the filter and sump is normal. Water covering the tub floor or reaching the raised area is not, and neither is cloudy or dark water that stays after a cycle.
Check the drain hose height or air gap if dirty water keeps coming back
ReversibleGE says a high drain loop at least 32 inches above the floor, or an air gap, stops sink water from siphoning back. If the hose sits low, that is a likely cause.
Verify before escalating
ReversibleRun an empty rinse and recheck after ten minutes and again after sink use.
What GE says
How much standing water is normal
A small amount is expected. GE's figure is below, with the signs that point to a drain fault.
- Normal amount
- GE says some standing water, usually one to two cups, remaining in the bottom of the tub is normal.
- When to worry
- GE says to be concerned if dirty water builds up over time in the bottom of the dishwasher. In that case check the drain hookup: GE recommends a high drain loop (at least 32 inches above the floor) or an air gap so sink water cannot flow back into the dishwasher.
Stop boundary
When this stops being a self-service repair
- !Stop for wastewater backup, glass in the pump area or water returning from the sink, and call a plumber for a household drain problem.
Evidence ledger
Sources behind this answer
Exact questions
Common questions about “Is a small amount of water below the dishwasher filter normal?”
Is it normal to have water at the bottom of the dishwasher?+
A small amount of clean water in the sump is normal on many models. Water above the filter, or dirty or smelly water, is not.
Why does my dishwasher smell if there is water in the bottom?+
Standing water with food particles can turn stale. Clean the filter and check that the drain hose has a high loop.
Can water come back from the sink?+
Yes, if the hose has no high loop or an air gap is missing, water can flow back into the machine.
How much is too much?+
GE says one to two cups is normal. More than that, or dirty water that builds up over time, points to a drain problem.
How much water is normal below the filter?+
A thin film or small pool that is clean is normal. It should not reach the filter, look dirty or smell.
What if the water smells or is dark?+
That usually means food debris, a clogged filter or a drain problem. Clean the filter and sump and run a rinse.