Lincoln
Our home base. Hard water and dry summer heat leave calcium at the tile line. Fall is a good time to test calcium hardness and clean up scale before winter.
Pool and spa service in LincolnFree guide, 2026-2027 Placer County edition
Most Placer County pools never close for the winter. That is exactly why fall and winter catch so many owners off guard.
What to do as the water cools, the leaves drop, and the first frost arrives, from American Dream Pool & Spa Service in Lincoln. Written for pool and spa owners in Lincoln, Rocklin, Roseville, Granite Bay, Loomis, Penryn, and Sheridan.
In Placer County, most pools stay open and running all year. There is no big closing day like there is back east. That makes the cooler months easy to overlook, but this is when a lot of problems get started.
Leaves pile up in skimmers. Cooler water changes how your chemicals behave. Winter storms throw off your balance and raise the water level. Frost can damage equipment that is not moving water. And the heater that sat unused all summer is suddenly expected to work on the first cold night.
If you are just coming out of summer, start with what Placer County pool and spa owners should do when summer ends. This guide picks up from there and runs through February.
Chlorine lasts longer, algae slows down, and your pump can run fewer hours. Balance still matters.
Oak, sycamore, and pine debris clogs baskets, stains plaster, and adds a steady chemical load.
Winter storms dilute your chemicals, raise the water level, and wash dirt and debris into the pool.
Heaters come back on, spas get used more, and cold nights put unprotected equipment at risk.
Leaves are the biggest fall job for most Placer County pools. A full skimmer basket cuts flow to the pump, and leaves that sink to the floor can leave brown tannin stains on plaster within a few days.
For a quick rundown of what else tends to break this time of year, see the top 10 things that can go wrong with your pool this fall.
As the water cools, most pools do not need summer run times. Many can run less in fall and less again in winter, as long as the water stays clear and the skimmers keep up with debris. Variable-speed pumps do best with longer run times at lower speeds.
Starting points for single-speed pumps. Adjust for clarity, debris, and your equipment. More on whether to keep your pump running in the fall.
Your filter worked hardest in July and August. A good cleaning in early fall clears out oils, sunscreen, and fine dust before leaf season. Write down the pressure reading right after cleaning, and clean again when it climbs about 8 to 10 psi above that number. If cleaning no longer brings the pressure down, it may be time to replace the filter, not just clean it.
Placer County winters are mild compared to most of the country. But frost, heavy rain, and wind storms still take a toll on pools that are left on autopilot.
Valley frost usually lasts only a few hours, but that can be enough to crack exposed pipes, pump housings, and filter parts if the water is not moving. Most automation systems have a freeze protection setting that starts the pump when air temperatures drop near freezing.
Heavy rain can raise the water level fast. Once it climbs above the skimmer opening, the skimmer stops pulling leaves off the surface. Depending on your equipment, the level can often be lowered through the filter's waste or backwash line. If you are not sure how, ask us before you try.
After a storm, clear debris from the pool, deck drains, and equipment pad, and reset any GFCI that tripped. If it keeps tripping, have it checked. If the level keeps dropping between storms instead, learn how to spot a pool leak.
Algae grows slowly in cold water, but it does not stop. Keep chlorine and pH in range, test at least once a week, and keep emptying baskets. A pool that gets ignored all winter usually turns into a green spring startup, and algae that keeps coming back. A cover helps too. Here is whether you should cover your pool in California.
Winter can be a good time for bigger work like equipment replacement or resurfacing, since the pool is not in use. But rain raises groundwater, and an empty pool can shift or even lift out of the ground. Do not drain your pool yourself during the wet season.
Cooler water is more forgiving in some ways. Chlorine lasts longer and algae grows more slowly. But fall and winter add new things to your water, so regular testing still matters. For the full picture, see how pool temperature affects water chemistry.
| Reading | Pool | Spa |
|---|---|---|
| Free chlorine | 1 to 3 ppm | 3 to 5 ppm |
| pH | 7.4 to 7.6 | 7.4 to 7.6 |
| Total alkalinity | 80 to 120 ppm | 80 to 120 ppm |
| Calcium hardness | 200 to 400 ppm | 150 to 250 ppm |
| Stabilizer (CYA) | 30 to 50 ppm | 30 to 50 ppm |
| Salt (salt systems) | Per your cell, often 3,000 to 3,500 ppm | Per manufacturer |
Decaying leaves release tannins that stain and organics that burn through chlorine. They also add phosphates, which algae feeds on. If your chlorine keeps dropping while the water looks fine, the leaves in your basket and on your floor are a likely reason. If it still will not hold, high stabilizer may be the problem. Here is why chlorine stops working when cyanuric acid builds up.
Rain dilutes your chemicals and can pull pH and alkalinity down. Runoff from planters and lawns brings in dirt and fertilizer. Test within a day of a heavy storm and rebalance before a small shift turns into cloudy water.
Water balance shifts with temperature. Calcium and pH levels that were fine in August can turn corrosive in December water, which is harder on plaster, tile grout, and heater parts. Keep pH and alkalinity in range and check calcium going into winter.
Fire season can run well into October. Ash raises chlorine demand and loads up the filter fast. Skim it off before it sinks, keep the pump running, and check your filter pressure once the air clears.
For a lot of homeowners, fall and winter are when the spa gets the most use. A quick check now saves you from finding a problem on the first cold night.
Gas heaters that sat all summer can collect spider webs and debris in the burner area. Turn the heater on while the weather is still mild and make sure it lights and holds temperature. A brief smell on the first firing is common. Repeated clicking without lighting, soot, or a heater that keeps shutting off is not. Leave gas heater repairs to a professional. More on how to tell if your heater is ready before you need it.
Heat pumps lose efficiency as the air cools, so a slower warm-up on cold mornings can be normal. A unit that runs without warming the water needs a look from our spa repair team.
A good cover holds in heat and keeps leaves out. If yours is heavy, waterlogged, torn, or no longer seals, you are paying to heat the night air. Lift it and check the underside for mold and cracked vinyl.
Spa water wears out much faster than pool water. With regular use, most spas need to be drained and refilled every three to four months. Early fall, before peak use, is a good time to do it. Our 10 easy spa maintenance steps cover the routine in between.
Rinse spa filters every couple of weeks during heavy use and give them a deep clean every few months. Replace cartridges that are frayed, flattened, or cracked at the end caps.
Keep the spa powered on all season. Most spa systems have built-in freeze protection, but it only works with power. Keep the water level up and the cover clipped down on windy nights.
The cooler months look a little different depending on where you live and where your water comes from.
Municipal water cities. Harder water means calcium builds up all summer as water evaporates and gets topped off.
Our home base. Hard water and dry summer heat leave calcium at the tile line. Fall is a good time to test calcium hardness and clean up scale before winter.
Pool and spa service in LincolnHeavy summer evaporation pushes calcium up. Test calcium and total dissolved solids this fall to see whether a partial drain and refill makes sense before the winter rains.
Pool and spa service in RocklinEstablished neighborhoods with mature trees mean heavier leaf drop. Empty baskets often and watch for tannin stains on light plaster.
Pool and spa service in RosevilleLarger lots and mature oaks bring leaves, acorns, and tannins. Acorns can jam skimmer and pump baskets, so check them often through November and after winter wind storms.
Pool and spa service in Granite BayWell water cities. Top-offs can bring in iron and other minerals, and rural lots see more dust and debris.
Many properties top off from a well, which can bring in iron and minerals that stain. Use a pre-filter on the hose and ask us about a metal sequestrant.
Pool and spa service in LoomisFoothill lots with oaks and pines mean steady debris, and well water can bring unpredictable mineral levels. Higher properties can see cold nights earlier, so check freeze protection before December.
Pool and spa service in PenrynRural acreage, well water, and open-field dust keep filters busy. Many pools here run older equipment, so fall is a good time to have the heater and pump looked over.
Pool and spa service in SheridanWant it on paper? Download the printable guide and keep the checklist near your equipment.
No. Most pools in Placer County stay open and running all year. Keep the pump running on a shorter schedule, keep chlorine and pH in range, and make sure freeze protection is on before the first cold nights.
A common starting point for a single-speed pump is about 6 to 8 hours a day in fall and 4 to 6 hours in winter, adjusted for water clarity and debris. Variable-speed pumps usually do best running longer at a lower speed.
Yes. Valley frost is usually brief, but it can still crack exposed pipes, pump housings, and filter parts if the water is not moving. Confirm your automation's freeze protection is on and never shut off the breaker to your pool equipment for the winter.
Not on your own. Winter rain raises groundwater, and an empty pool can shift or even lift out of the ground. Draining, resurfacing, and similar work should be planned with a pool professional.
With regular use, most hot tubs need to be drained and refilled every three to four months. Early fall, before the heaviest use, is a good time to do it.
Leaves and other organic debris burn through chlorine as they break down, and they add phosphates that feed algae. Emptying baskets often and keeping leaves off the pool floor makes a noticeable difference.
