Pool Costs
Year two, and the lines that disappear
Almost every 'what does a pool cost' figure you will read is a year-one figure. Year two is a different, much smaller number, and knowing which is which changes the buying decision.
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The short version
- Most published pool costs are year-one costs, because that is the year people search for them. Year two is a materially smaller number.
- The durables are all bought in year one — pool, pump, ladder, ground cloth, covers, dispenser, pole and net.
- Year two is four lines: water, electricity, chemicals and filter cartridges. Nothing else recurs annually.
- This is the whole argument for keeping a pool rather than replacing one. A cheap pool replaced every two seasons never reaches its cheap year.
Sorting the list into two columns
Every cost of owning an above-ground pool falls into one of two boxes: things you buy once and keep, and things that are consumed. The confusion in this category comes from the two being quoted together as “what a pool costs”, which is true for one summer and misleading for every summer after it.
| Line | Year one | Year two |
|---|---|---|
| The pool itself | Yes | No |
| Filter pump | Yes | No |
| Ladder | Yes | No |
| Ground cloth | Yes | No |
| Solar cover and reel | Yes | No |
| Winter cover | Yes | No |
| Skimmer net and pole | Yes | No |
| Floating dispenser | Yes | No |
| Water for the fill | Yes | Yes |
| Pump electricity | Yes | Yes |
| Chlorine, shock, balancers | Yes | Yes |
| Test strips | Yes | Yes |
| Filter cartridges | Yes | Yes |
What year two actually adds up to
Take the mid-size case — a 3,955-gallon pool, a 120-day season, a 300 W pump run eight hours a day — and price only the recurring lines using the same sourced figures we use across the site.
The recurring four, for a 3,955-gallon season
- Water, one fill [EPA WaterSense]
- 3.955 kgal × $6.06 = $23.96
- Electricity, 300 W × 8 h × 120 days [EIA]
- 288 kWh × $0.1834 = $52.82
- Chlorine tablets [Clorox Pool&Spa]
- ≈ 14 for 17 weeks
- Filter cartridges
- ≈ 8-9 at the heavy-use interval
$23.96 water + $52.82 electricity + ≈14 tablets + ≈8 cartridges + shock and balancers
About $77 of computable cost, plus consumables at your own prices
The lines that shrink rather than disappear
Two costs get smaller in year two without going away, and both are worth knowing about because they are experience rather than equipment.
Chemicals. A first season involves overcorrecting, overshooting and buying a product to solve a problem that turned out to be a blocked cartridge. By year two you are testing on autopilot, correcting alkalinity before pH, and reaching for the right thing first. That is a genuine saving and nobody puts it in a table.
Cartridges. Skimming daily, rinsing on schedule rather than waiting for the flow to drop, and keeping two cartridges in rotation all stretch the interval. Our cartridge guide covers the habits; they are worth several cartridges across a season.
The lines that appear later
Year two is the cheapest year. Year four is not, because durables have lifespans too — a solar cover that has had three summers of ultraviolet, an air pillow that only ever lasts a winter, and eventually a liner. Our replacement parts guide is the schedule for all of that, and how long they last covers what decides when it arrives.
There is also one avoidable line that can appear in any year, and it is the largest one on the site: the bill produced by a bad autumn close. Our cost of a bad close guide prices it, and it dwarfs everything in the recurring table.
Why this changes the buying decision
If year two is the cheap year, then the way to make a pool expensive is to never reach it. A consumable pool that is replaced every second season pays the year-one price repeatedly and never sees the benefit of the durables it keeps buying.
That does not automatically argue for the most expensive pool — the recurring costs scale with gallons, so a bigger pool has a bigger year two as well as a bigger year one. It argues for buying the pool you will still be using in year three, storing it properly, and putting the difference into the two items that extend its life: a ground cloth underneath and a proper cover over it. Our annual cost-to-run guide assembles both years into one worksheet, and pool versus membership shows why the comparison only makes sense across several summers.
What to buy
Scores are our own reading of published specifications. They are not test results — we have not tested these products and we do not claim to.
The consumable you will actually buy repeatedly
Type A Replacement Filter Cartridges (multipack)
Various
Buy them in a multipack before you need them. A pool running on an exhausted cartridge is a cloudy pool, and the fix is a two-dollar part you did not have.
Key specs
- Type
- Type A — the most common Intex format
- Replacement interval
- Every 2 weeks in heavy use, per Intex guidance
- Between changes
- Rinse, do not scrub
How it scoresour reading of published specs, not a test result
- Sizing fit
- 9.0
- Running cost
- 7.0
- Maintenance
- 8.5
- Build
- 7.0
- Value
- 8.5
Overall 8.2 / 10
What works
- Type A is the most widely stocked cartridge format in the US
- Multipacks cost a fraction of buying singles
- Having a spare turns a cloudy week into a five-minute fix
What doesn't
- It is a genuine recurring cost that nobody includes in the purchase price
- Aftermarket quality varies noticeably
- Rinsing extends life but does not restore a cartridge that is done
Skip it if: Being restored. Once the pleats are permanently gray and stiff, rinsing is not saving it.
What it costs to run: The line item most people leave out of their pool budget. Count how many you use in your first season and you have your real annual filtration cost — this is exactly the number the cost-to-run guide asks you to record.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
The default chlorine source
Clorox Pool&Spa 3-Inch Chlorinating Tablets
Clorox Pool&Spa
Stabilized trichlor tablets in a floating dispenser is the standard answer for a seasonal above-ground pool, and this is the standard version of it.
#ad how this is funded · price as of October 8, 2026
Key specs
- Type
- Stabilized trichlor, 3-inch tablets
- Contains stabilizer
- Yes — cyanuric acid is part of trichlor
- Dosing
- Per manufacturer instructions, by pool volume
- CDC target
- At least 2 ppm free chlorine when using a stabilizer
How it scoresour reading of published specs, not a test result
- Effectiveness
- 9.0
- Ease
- 9.0
- Water impact
- 6.0
- Cost per season
- 8.5
- Value
- 8.5
Overall 8.5 / 10
What works
- Dissolves slowly, so a floating dispenser meters chlorine out over days rather than hours
- Stabilized, so sunlight does not destroy your chlorine within an afternoon
- Widely stocked, so you are never hunting for it in July
What doesn't
- Every tablet adds cyanuric acid, and in a pool you never fully drain that accumulates until chlorine stops responding
- Trichlor is acidic and will pull your pH down over a season
- Tablets must be kept dry and sealed or they degrade and gas off
Skip it if: A small pool that is topped up rather than drained. Cyanuric acid only leaves with the water, so in a 1,500-gallon pool it climbs fast.
What it costs to run: The standing chemical cost of the season, and it scales directly with gallons. Watch the cyanuric acid reading on your test strip: once it is high, you are buying chlorine that cannot work, which is the most common invisible waste in a first pool year.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
Specs from: CDC — free chlorine target with cyanuric acid
The default first test kit
AquaChek Silver 7-Way Test Strips (100 count)
AquaChek
Seven readings in fifteen seconds, including the two that beginners never measure and then fight all summer: total alkalinity and cyanuric acid.
#ad how this is funded · price as of October 8, 2026
Key specs
- Tests
- Free chlorine, total chlorine, bromine, pH, total alkalinity, total hardness, cyanuric acid
- Free chlorine range
- 0-20 ppm
- pH range
- 6.2-8.4
- Total alkalinity range
- 0-240 ppm
- Cyanuric acid range
- 0-300 ppm
- Read time
- 15 seconds
- Count
- 100 strips
How it scoresour reading of published specs, not a test result
- Accuracy
- 7.0
- Ease
- 9.5
- Coverage
- 9.5
- Cost per use
- 9.0
- Value
- 9.2
Overall 8.9 / 10
What works
- Covers cyanuric acid, which most cheap strips omit and which is the reason chlorine stops working in a stabilized pool
- pH range spans 6.2-8.4, comfortably bracketing the CDC's recommended 7.0-7.8
- 15 seconds and a color chart printed on the bottle — no separate booklet to lose
- 100 strips is a full season of twice-weekly testing with room to spare
What doesn't
- Strips are a comparison against a printed color chart, so they are directional rather than precise
- Reading them in bright sun is harder than it should be
- The bottle must be kept sealed and dry or the strips degrade quietly
Skip it if: Fine adjustment. If you are chasing a stubborn problem and need a number rather than a color band, a liquid reagent kit is the tool.
What it costs to run: 100 strips at twice-weekly testing covers roughly two seasons for one pool. The real saving is upstream: knowing your alkalinity stops you buying pH adjuster you did not need.
One honest season: The cheapest setup that genuinely works for a season of real swimming. Nothing spare, nothing missing.
Specs from: CDC — home pool and hot tub water treatment and testing
The single highest-return accessory here
Bubble Solar Cover for Above-Ground Pools
Various
It cuts evaporation, and evaporation is simultaneously your water bill, your chemical bill and your heat loss. Nothing else on this site reduces three costs at once.
#ad how this is funded · price as of October 8, 2026
Key specs
- Construction
- Bubble sheet, thickness published in mil
- Thickness
- Higher mil lasts longer — 12 mil and 16 mil are common
- Fit
- Cut to size; buy oversize and trim
- Orientation
- Bubbles face down, toward the water
How it scoresour reading of published specs, not a test result
- Retention
- 9.0
- Durability
- 7.0
- Handling
- 6.0
- Running cost
- 9.8
- Value
- 9.5
Overall 9.0 / 10
What works
- Reduces evaporation, which is the mechanism behind the water, chemical and heat savings all at once
- Cheap relative to everything it saves
- Can be cut to fit any pool shape, so sizing is forgiving
What doesn't
- Awkward to get on and off without a reel, and awkward is how covers end up unused
- Degrades in UV like every vinyl product
- Not a safety cover and will not support weight — this is important
Skip it if: Being a safety barrier. A solar cover looks solid and is not; a child or pet on it goes through and under.
What it costs to run: The one accessory with a clear payback. Every gallon that does not evaporate is a gallon you do not replace at the EPA WaterSense national average of $6.06 per 1,000 gallons, and it is chlorine you do not re-dose. If you buy one thing from this hub, buy this.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Specs from: EPA WaterSense — cost per 1,000 gallons
Protecting the liner from below
Pool Ground Cloth / Under-Pool Pad
Various
Most liner punctures come from underneath, from a stone or a root you did not see. A ground cloth is the cheapest way to avoid the most expensive repair in above-ground pool ownership.
Key specs
- Function
- Barrier between ground and liner
- Sizing
- Should extend past the pool footprint
- Included with
- Some kits — check before buying separately
How it scoresour reading of published specs, not a test result
- Retention
- 8.0
- Durability
- 7.5
- Handling
- 8.5
- Running cost
- 10.0
- Value
- 9.0
Overall 8.5 / 10
What works
- Prevents the failure mode that ends pools: a puncture in the floor you cannot reach to patch
- Also slows grass and weeds growing up under the pool
- Included free in better kits, so check before you buy one
What doesn't
- Not a substitute for actually clearing stones and roots first
- Thin ones tear during installation before the pool is even up
- Traps moisture, which kills the grass underneath regardless
Skip it if: Fixing uneven ground. It protects against punctures; it does nothing about level, and level is the bigger problem.
What it costs to run: Compare its cost to a liner replacement, which is the single largest unplanned expense in above-ground pool ownership. It is not a close call.
Several seasons: Buy-once. Built and warranted to come back out of the box for a few years, if you store it properly.
Questions people actually ask
Does a pool cost less in the second year?
What does a second season of an above-ground pool cost?
Which pool costs are one-off?
Is it cheaper to keep a pool or replace it every couple of years?
Sources
Read next
- What a pool actually costs, with the arithmetic shownPurchase, electricity, chemicals, water and replacement parts - added up, sourced, and shown as arithmetic you can redo.
- What an above-ground pool actually costs to run for a yearElectricity, chemicals, water and consumables for a full season - every input sourced, every calculation shown, and every assumption named.
- What an above-ground pool costs to buyThe purchase side: what is in the kit, what is not, and the day-one spend that turns a cheap pool into a not-cheap one.
- What actually wears out, and when you will be buying itThe replacement schedule for an above-ground pool - cartridges, covers, liners and hardware - and which spares are worth keeping on the shelf.
- Backyard pool or a membership: how to actually compare themThe owned-pool side computed in full, a worksheet for the membership side, and the non-financial factors that usually decide it anyway.
- The cheapest pool setup that actually works for a yearA complete, deliberately minimal first-year setup: the pool, the pump, the testing, the chlorine and the one tool you will use most.
- How long an above-ground pool actually lastsRealistic lifespans by pool type, the four failure modes that account for nearly all of them, and the cheap items that add seasons.