Spark Pool Conditioner keeps a pool algae-free for up to 12 months on a single dose — while cutting chlorine use, holding pH down, and making the water softer on skin and eyes.
There is one thing that decides whether it works: the quantity. Spark is dosed at 1 kg per 4,500 litres of pool water. Under-dose and the concentration never reaches the level that holds algae off, and the pool will not stay clear. Work out your exact quantity before you order — it takes thirty seconds.
BEFORE YOU ORDER
How much Spark does your pool need?
Enter your pool dimensions, or your volume if you already know it. The calculator gives you the exact kilograms and adds them straight to your cart at the right quantity.
Open the Spark Dosage Calculator
Quick reference: a 8 m × 4 m pool at 1.4 m average depth holds about 44,800 litres and needs 10 kg. A 6 m × 3 m pool at 1.2 m holds about 21,600 litres and needs 5 kg. Always round up — a slight over-dose is harmless, being short is not.
How Spark works
Spark does not chase algae after it appears. It changes the water chemistry so algae cannot establish in the first place — holding a low ceiling on pH, and letting a small, steady chlorine residual do far more work than it normally would.
What you get
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A low ceiling on pH. Spark stops pH climbing past a set point, sometimes as low as 7.5 — the end of chasing pH every week.
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Chlorine that goes further. Hold 1 ppm of chlorine and let Spark do the rest. Users typically report chlorine and acid costs dropping substantially.
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Water that is kinder to swim in. Softer water, less eye sting, less dried-out skin.
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One application, up to 12 months. No weekly dosing routine to remember.
Who it is for
Families who would rather use the pool than maintain it. Property and condominium managers running pools with limited staff. Pool service professionals who want a result their clients can see. And new pool owners who have not yet learned pool chemistry the hard way.
Your routine after dosing
- Add the calculated quantity of Spark once.
- Maintain roughly 1 ppm of chlorine. We recommend 90% chlorine for outdoor pools, 70% for indoor.
- Adjust pH to 7.2 every two to three weeks with muriatic acid or dry acid.
- Vacuum as normal.
Topping up
Spark stays dissolved in the water, so anything that removes water removes Spark — splash-out, backwashing, draining. If you replace a meaningful volume, run the calculator again on just the replaced volume and top up accordingly. Evaporation alone does not affect it, but the water you add back does.
When Spark is not the right product
We would rather tell you now than refund you later. If your pool overflows to drain continuously, or is topped up with large volumes of fresh water every day, Spark will not hold and you should not buy it. Pools with high phosphate or nitrate loading may also need a phosphate remover or a higher chlorine residual alongside it. Hot spring water is not suitable.
A real pool
A retired colonel living on a farm property was losing his pool to algae every two to three days, and did not want to balance chemistry daily. After switching to Spark he holds clear water with a pre-computed dose of chlorine and acid and vacuuming twice a week. His chlorine and acid costs fell by up to 60%.

More detail: Dosage calculator · Spark FAQs · Troubleshooting guide
Always follow safety instructions when handling any pool chemical. Keep out of reach of children.