First, check the cheap fix
If a previous owner already buried the discharge line, walk the yard 8–15 feet out from where the pipe leaves the house and look for a pop-up emitter buried under grass, mulch, or silt. A smothered emitter is the single most common cause of the "swampy spot" call we get — and clearing it is the cheapest fix in drainage. If the lid is matted over, water backs up the line and surfaces wherever it can.
Why the water pools instead of soaking in
A sump pump doesn't trickle — it moves a lot of water in bursts, over and over, all season. Most builders end the line with a short corrugated hose that dumps every gallon 3–6 feet from the foundation. In Kansas City's heavy clay, that water has nowhere to go: clay absorbs slowly, the same spot gets re-soaked every pump cycle, and the lawn turns to marsh. The grass dies, the mosquitoes move in, and the low spot gets lower.
The recirculation loop — why your pump "never stops running"
Here's the part that costs you money: water dumped a few feet from the wall soaks straight back down the foundation, re-enters the drain tile, and lands back in the sump pit — where the pump lifts the same water again. If your sump pump seems to run constantly, or kicks on long after the rain stopped, you're probably watching one batch of water go around in a circle. That loop wears out a pump years early. The fix isn't a new pump — it's breaking the loop by getting the discharge far enough away that the water can't come back.
The fix: a buried discharge line to a real low point — $300–$700
We bury a dedicated solid-wall line from your discharge stub, running at continuous downhill slope for 5–30 feet to wherever the water should actually end up — a pop-up emitter at a true low point in the lawn, or a daylight outlet if your lot has the grade for it. Continuous slope means the pipe empties itself between pump cycles, which is what makes it behave in winter — water that doesn't sit can't freeze. Utility locates through 811 before we dig, trench backfilled and tamped when we're done. Most single lines land at $300–$700 installed — full details on the sump pump discharge line page and what it costs to bury a discharge line.
When it's not us — and we'll say so
If the pump itself is the problem — it won't kick on, the float is stuck, it trips the breaker — that's a plumber, and we'll tell you that on the phone instead of selling you a trench. Our work starts where the pipe exits the wall: getting the water the pump moves to a place it can't come back from.
Do you need a French drain for sump water? Usually not.
A French drain collects groundwater that's already in the soil. Your sump discharge is the opposite job — the water is already collected and just needs to be carried somewhere safe, which is what a solid discharge line does for a fraction of the price. The honest exception: if the yard stays wet even when the pump hasn't run in days, there's a groundwater problem on top of the discharge problem — the sump pump vs French drain breakdown covers how to tell, or our free walk-through will.
Not sure what your yard needs? Answer one question in the diagnostic, or price the fix in 60 seconds:
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