When the Strafford Planning Board went through what’s stressing systems around Bow Lake, one item stood out to us: campers parked on shoreline lots and used as bunkhouses. It’s the same thing that shows up in our emergency calls.
The board’s wording was that a number of RVs on shoreline residential lots are being used as bunkhouses, which adds bedrooms onto existing septic systems. Which is exactly it. The camp was approved for two bedrooms. The camper in the side yard sleeps four more. The tank and the field don’t know about the camper until the long weekend when everybody’s showering.
Holding tanks are the other one. A few of the lake properties that answered the town’s survey are on a holding tank instead of a field. When one of those fills, there’s no slow decline. It’s full, and the alarm is going.
And then winter. The lake comes down four feet every October, the summer people close up, and a line that wasn’t drained right or a pipe that sits shallow under a plowed driveway freezes sometime in January. Nobody notices until somebody drives up in March.
Before a big summer weekend at the lake, think about how many people the system was approved for — then count the campers, tents and air mattresses. If the second number is double the first, get the tank pumped the week before.
First thing: stop running water. No laundry, no dishwasher, no showers. Every gallon you add has to go somewhere, and if it’s backing up, somewhere is your basement or your yard.
Then tell us what you’re seeing. Backup in the lowest drain? Alarm going on a holding tank? Ground soft and smelly over the field? Each one points somewhere different, and it helps us bring the right gear.
When we get there we pump the tank down so it can take flow again, then look for why it happened — plugged outlet, broken baffle, frozen line, or just more people than the system was ever built for. If it’s the last one, we’ll say so plainly, even if the fix is “fewer people in the camper.”
Emergency response runs $400–$700 for a standard tank, covering the pump-out and a diagnosis while the lid’s open. Distance, time of day and how far we’re hauling hose move you around inside that range. You hear the number before we start.
It can be. If the camper’s guests use the house bathroom or the camper drains into the house system, those are extra bedrooms the septic design never counted. Strafford’s Planning Board flagged exactly this on Bow Lake. A busy weekend is often when the system finally says something.
Pretty urgent. The alarm usually means the tank has hit its high level and there’s limited room left. Cut water use way down right away and call to get it pumped. With a holding tank there’s no field to absorb overflow, so it backs up into the house instead.
Drain the plumbing, including traps, and make sure the line from the house to the tank pitches the right way so nothing sits in it. If the line runs shallow under a spot that gets plowed, that’s where it’ll freeze. Knowing where the tank cover is before snow helps everybody.
Sometimes, if you can stop using water completely and nothing is coming up into the house. If sewage is in a fixture or the basement, or a holding tank alarm is sounding, don’t wait. Waste in the house is a health problem, and it gets worse every time somebody flushes.
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