Fall Plumbing Checklist for Northern Michigan Homeowners

August in Northern Michigan still feels like summer — but the leaves start turning before you know it, and then it's October, and then it's -10° and you're dealing with something that could have been handled in an afternoon. Plumbing problems that simmer quietly through summer have a way of becoming emergencies the first hard freeze of the year.

This checklist is for year-round homeowners — not cabins (that's a separate post), but the home you live in every day. Work through it before the first frost and you'll head into winter in a lot better shape.

1. Flush Your Water Heater

Sediment builds up in the bottom of tank water heaters over time — faster in Northern Michigan, where well water carries minerals that settle out as the water heats. That layer of sediment acts as insulation between the burner and the water, making your heater work harder and wear out faster. It also causes the popping and rumbling sounds a lot of homeowners learn to ignore.

Before winter, connect a hose to the drain valve at the bottom of the tank and flush it until the water runs clear. If your heater is more than 8–10 years old, do this carefully — older sediment can shift and expose a corroded valve. If the valve won't close properly after draining, that's a call for a plumber. Fall is also a good time to check the anode rod, which protects the tank interior from corrosion. Most rods last 3–5 years; if yours is overdue, replacing it is cheap insurance.

2. Test Your Sump Pump Before Fall Rains Hit

Fall in Northern Michigan brings heavy rains — and snowmelt the following spring. Your sump pump sits in a pit all summer, often untouched, and the first time it gets tested is when you actually need it. That's not a great strategy.

Test it now. Pour a bucket of water into the pit and watch it cycle on and off. Listen for grinding, sluggishness, or anything that sounds off. Make sure the float moves freely and the discharge line is clear and draining well away from the foundation. If it hasn't been replaced in the last 7–10 years, it's worth thinking about proactively — sump pumps don't always give warning before they fail.

If you don't have a battery backup and your basement is finished or has anything worth protecting, fall is a good time to add one. Power outages and heavy rain often go together. A backup pump that kicks in during an outage can be the difference between a dry basement and thousands in water damage.

3. Disconnect Outdoor Hoses and Check Your Sillcocks

This one's easy to forget and surprisingly damaging when you do. Even if you have frost-free sillcocks (the ones designed to drain when the valve closes), a garden hose left connected traps water inside the valve body. When it freezes, it cracks the valve — usually from the inside, where you can't see it until spring when the water starts running somewhere it shouldn't.

Before the first hard freeze: disconnect every outdoor hose, drain it, and store it for winter. While you're at it, turn each sillcock on briefly and check for drips, low flow, or any sign of trouble from the summer season. A sillcock that's been leaking slowly all summer is a much easier fix now than after it splits in January.

4. Check Your Water Softener Salt and Settings

Northern Michigan well water is hard — genuinely hard, with mineral content that would surprise most city dwellers. Your water softener works overtime here, and if it runs out of salt, you lose protection fast. Hard water scaling in your water heater, on your fixtures, and inside your pipes compounds quickly through a cold winter when the system is under heavier load.

Top off the salt tank in the fall and check the brine tank for any salt bridging (a hard crust that forms across the top and prevents the salt from dissolving properly). If you notice your softener is cycling more often than usual or your water has gotten noticeably harder, the resin may need cleaning or the settings may need adjustment. A plumber can diagnose it quickly.

5. Inspect Your Pressure Tank (If You're on a Well)

If your home uses a well, the pressure tank is the unsung hero of your water system — it's what keeps your pump from short-cycling and maintains steady pressure throughout the house. Pressure tanks fail gradually, and the early warning signs are easy to miss: pressure that surges when you turn on a tap, a pump that kicks on every few seconds, or pressure that drops faster than it used to.

Fall is a smart time to check the air charge in the tank. With the system depressurized, there should be 2 PSI below your cut-in pressure in the air side of the tank. If it's waterlogged (no air left), the tank has failed and will keep cycling your pump to death. Replacing a pressure tank before winter is much easier than doing it in a frozen crawl space in February.

6. Look for Slow Drips and Leaks While You Still Can

Cold weather tends to expose problems that were hiding all summer. Faucet stems that were barely sealing start dripping. Supply lines that were just barely okay start weeping. A slow drip under the sink that you've been meaning to deal with becomes a much bigger problem if it's happening behind a wall when temps drop and you're not watching.

Do a walk-through. Check under every sink — kitchen, bathroom, utility room. Look at the supply lines to toilets. Check around the base of toilets for any moisture. Look at exposed pipes in the basement or crawl space. If you're on a well, watch your water meter (or check the pump cycle counter if you have one) for any sign of a leak running somewhere you can't see.

Small leaks fixed in October are cheap. Small leaks discovered in January when you're already dealing with everything else are expensive.

7. Insulate Exposed Pipes Before the Cold Comes

If you have pipes in a crawl space, garage, or against an exterior wall that aren't insulated, fall is the time to deal with it. Pipe insulation is inexpensive and easy to install — foam pipe wrap from any hardware store goes on in minutes. Pay particular attention to the north side of the house and any unheated outbuildings that have water running to them.

While you're at it, make sure any vents or openings in the foundation or crawl space that let in outside air in summer are sealed or covered for winter. Cold air moving through a crawl space can freeze pipes even when the interior of the house is warm.

8. Know Where Your Main Shutoff Is

This isn't glamorous, but it matters more than anything else on this list. In a plumbing emergency — burst pipe, failed valve, water heater leak — the first thing you do is shut off the water. If you don't know where the shutoff is, or if it's been years since it's been turned, you can lose a lot of water and a lot of your house before you figure it out.

Find it. Turn it. Make sure it actually shuts off water flow and that it turns freely. Show everyone in your household where it is. If the main shutoff is a gate valve (the old round-wheel kind) and it doesn't seat properly, replace it with a ball valve while the weather is still reasonable. A ball valve is a quarter turn — fast, reliable, and obvious when it's open or closed.

A Few Hours Now vs. A Bad Day in January

Most of this checklist takes an afternoon. Some of it — the sillcocks, the hoses, the shutoff — takes fifteen minutes. The parts that take longer are the ones with a higher payoff: a flushed water heater lasts longer, a tested sump pump doesn't fail during a storm, an insulated pipe doesn't burst at 3 AM on a Tuesday in February.

Northern Michigan winters are real. The plumbing problems that go with them are real too. Getting ahead of them in August and September is the cheapest, easiest version of dealing with them — by a wide margin.

If you work through this list and find something that needs professional attention, that's what we're here for. Cy's been doing this since 2011 and has seen what happens to homes that skip fall maintenance. It's not pretty.