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Browse All Products →Whether your pool turned green overnight or you just want to stay ahead of algae all summer, shock treatment is the fastest way to reset your water. The One Pool Care offers both urgent, same-day shock treatment and scheduled seasonal shocking built into your maintenance plan.
Every Shock Treatment Includes
Two Ways We Help
Most people only think about shocking a pool once it's already gone green. The truth is, a scheduled shock through the warmer months prevents most emergencies from happening in the first place. We offer both, so wherever you're starting from, there's a clear next step.
Algae blooms, heavy contamination after a storm, or a pool left untouched for weeks all need a strong, fast-acting shock dose to bring chlorine back to a level that can actually kill what's growing.
A scheduled shock every 4 to 6 weeks through summer, or after big pool parties and heavy rain, keeps chlorine ahead of contaminants before they take hold. It's a small, predictable cost against a much bigger emergency clean-up.
Common Signs
Most of these signs feel like there's "too much" chlorine in the pool. In almost every case, it's the opposite, chlorine has dropped too low to do its job, and a shock dose is what brings it back under control.
A clear sign algae has taken hold faster than your normal chlorine level can manage.
Counterintuitively, a sharp smell usually means chloramines have built up because free chlorine is too low.
Same cause as above, chloramine irritation rather than excess sanitiser.
More swimmers means more organic contaminants. A post-event shock resets the water quickly.
Rainwater runoff and debris dilute chlorine and introduce contaminants that need a stronger dose to clear.
A pool left unattended for one to two weeks often needs a shock to recover before regular servicing resumes.
How It Works
Over-shocking wastes money and under-shocking doesn't solve the problem. We calculate the right dose from your actual water test, not guesswork, so the result is reliable every time.
We test chlorine, pH, and contamination level on-site to confirm shock treatment is the right call and calculate the dose.
The correct strength and type of shock is applied based on your pool's volume and the issue we're treating.
We advise on how long to run your filter and pump afterwards to circulate the treatment fully through the water.
We let you know when chlorine will drop back to a safe swimming range, typically 8 to 24 hours later.
Know Your Options
Different contamination calls for a different approach. Here's a quick reference for what's typically used and why.
| Shock Type | Best For | Notes |
|---|---|---|
| Chlorine-based shock | General algae, routine seasonal shocking | Most common option, works for most pool types |
| Non-chlorine (oxidiser) shock | Quick turnaround swimming, sensitive skin | Shorter wait time before swimming, doesn't raise chlorine |
| Calcium hypochlorite shock | Severe green or contaminated pools | Strong dose, used in heavier recovery situations |
| Saltwater-safe shock | Pools with a salt chlorinator system | Calculated to avoid overloading the salt cell |
If your pool runs on a salt system, see our Saltwater Pool Cleaning page for cell-specific care alongside shock treatment.
Stay Ahead of It
Reactive shock treatment fixes the problem, but a scheduled approach prevents most problems from reaching that point. This is usually built directly into a regular maintenance visit, with no extra booking needed.
Most Melbourne pools do well with a shock dose every 4 to 6 weeks across summer, plus reactive shocks around specific events.
If you're managing a strata, gym, or commercial pool, a documented shocking schedule also supports your compliance and water quality records.
Local & Trusted
Green pool emergencies don't wait for a convenient time, which is why we run local technicians suburb-by-suburb. Wherever you are in Melbourne, there's a good chance we shocked a pool nearby this week.
Because our technicians are already working close by, emergency shock treatment call-outs are usually quicker to schedule and don't carry a long-distance fee. We also know which suburbs run bore water, which changes how a shock dose behaves.
Same-day emergency visits are usually available across the inner, south, and southeastern suburbs.
In Their Own Words
A green pool the morning after a storm, a pool party the night before, or a holiday that ran a week too long, the fix is usually the same. Here's how it played out for three recent clients.
"Came home from two weeks away and the pool had gone full swamp-green. I called expecting a multi-day fix, but a same-day shock treatment and a follow-up clean had it crystal clear within 48 hours."
"We had thirty kids in the pool for my daughter's birthday and the water looked cloudy by that evening. The technician shocked it the next morning and explained why parties do that to the chemistry. Back to normal by the afternoon."
"Our body corporate pool used to go green every few months until we set up a scheduled shock as part of the maintenance plan. Eighteen months later, we haven't had a single emergency call-out."
These are the exact questions that come up whether it’s an emergency call-out or a scheduled visit. If yours isn’t covered here, give us a call and we’ll answer it directly.
Pool shock treatment is the process of rapidly raising chlorine to a high level for a short period to kill algae, bacteria, and contaminants that normal sanitiser levels can’t handle. It’s used both as an emergency fix and as scheduled preventative maintenance.
Book emergency shock treatment today or set up a seasonal schedule with your ongoing maintenance plan, fixed pricing, no surprises.
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Shock treatment is often one part of a bigger fix. Browse the services our clients combine it with most.
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