Most taps between Mukilteo and Mill Creek pour water that started in Spada Reservoir on the Sultan River. The City of Everett filters it at Chaplain Reservoir and sells it, directly or through the Alderwood district, to roughly three quarters of the homes and businesses in Snohomish County. The 2025 water reports for Lynnwood, Alderwood and Silver Lake list total hardness between 10.2 and 15.8 parts per million, averaging 12.5. That is well under one grain per gallon, very soft by any common measure.
Soft water is kind to faucets and water heaters. It is harder on drinking glasses, because nearly every dishwasher detergent is formulated to fight minerals our water barely carries. When glasses come out of the rack hazy, there are three usual explanations, and each one has a different fix.
Three kinds of cloudy
- Etching. The surface of the glass itself has been worn away by alkaline detergent with too little in the water to work on. It starts as a faint rainbow sheen, often in streaks or patches near the rim, and turns into a milky haze that never washes off. Thin stemware and older crystal show it first.
- Residue film. Something is sitting on the glass: leftover detergent, too much rinse aid, or fine food particles carried back by wash water that is not being filtered and drained properly. It feels slightly gritty or slick and comes off with effort.
- Mineral film. The chalky white coating people from hard-water regions know well. With water as soft as ours it is uncommon.
Shoreline and Kenmore drink Seattle's Tolt River supply instead, as do parts of Bothell and Lake Forest Park. Sampling in February 2026 put Tolt water at roughly 1.2 to 1.4 grains per gallon, a little harder than Everett water but still soft, so the same habits apply. The Lake Forest Park Water District runs its own groundwater system, and we could not find a published hardness figure for it, which makes the test below the quickest way to know where you stand.
A five-minute vinegar test
Soak one cloudy glass in plain white vinegar for about five minutes, then rinse and dry it by hand. If it comes back clear, the haze was a deposit, and the answer lies in the detergent dose, the rinse aid or the way the dishwasher is washing. If the cloudiness stays, or the glass now looks rough and frosted under a bright light, the glass is etched. Etching cannot be polished away at home. The goal from then on is protecting the rest of the cupboard.
Dosing for water this soft
The dosing marks on a detergent package assume moderately hard water, so most households here use more than they need without knowing it.
- With powder or gel, try filling the main cup about halfway and leave the prewash cup empty unless the dishes are heavily soiled. Adjust from there over a week of loads.
- A pod or tablet is a fixed dose sized for harder water than ours. If you prefer pods, pick one that mentions glass care on the label and run full loads, so the dose is spread across more dishes.
- Turn the rinse-aid setting down a step or two. Too much leaves streaks and a greasy look that is easy to mistake for etching.
- Some European-built machines have a water-hardness menu and a salt reservoir for a built-in softener. There is very little for that softener to remove from Everett water, so set it to the softest level the menu offers and follow the manual on whether salt is still needed.
- Leave heated dry and sanitize options off for good glassware. Heat speeds up etching.
Extra detergent in soft water also makes foam. A tub full of suds can push water out under the door, lift the float switch or stop the cycle with an error code. A squirt of hand dish soap in the dispenser does the same thing much faster, and it is one of the more common reasons a dishwasher suddenly leaks on the kitchen floor.
When the dishwasher is the cause
A film that keeps coming back after you cut the dose usually means the machine is not washing or rinsing the way it should. These are the faults we find behind a cloudy load:
- A clogged filter at the bottom of the tub, which lets fine debris circulate and settle back on the glasses. Cleaning it is a safe job for anyone, and the manual shows how it twists out.
- Blocked holes in a spray arm, or an arm that sticks instead of turning.
- Water that never gets hot enough, from a failed heating element, a bad thermistor or a long pipe run from the water heater. Run the kitchen tap until it turns hot before you start a cycle. If that takes a long time, the dishwasher has been filling with cool water too.
- A weak circulation pump, or a drain that leaves dirty water in the sump, so the final rinse is never clean.
- A detergent door that opens at the wrong moment or not at all, which leaves a white paste in the cup and powdery spots on the dishes.
- A rinse-aid dispenser that dumps most of its reservoir into one cycle.
What a visit looks like
Your technician starts by asking which detergent you use and how much, then runs the machine to watch the fill, the wash temperature and the drain. We check the heater circuit, spray arms, filter and both dispensers, and we look at the cloudy glasses themselves, because etching and film call for different answers. If the trouble turns out to be chemistry rather than a part, we tell you so, and the $95 diagnostic is the whole bill. If a part is at fault, the written estimate shows the repair before anything is replaced, and the $95 is credited toward it once you approve.
Dishwasher repairs start from $249. Read that as the bottom of the range, not a quote; your own number appears on the estimate after the diagnostic. To book, call (425) 287-5458 or use the online form, and tell us whether the haze appeared suddenly or crept in over months, since the slow version usually points to etching. More on our dishwasher repair page, and the full table is on pricing.