AquaSolis CLS+25 Low Salt Self-Cleaning Salt and Mineral Pool Chlorinator w/ Timer & Battery Backup (Retrofits Astral Pool E/VX/V/eQ/Halo)
Low-Salt Comfort, Everyday Luxury
Step out of your pool and feel… nothing. No eye sting, no skin tightness — just water that feels right: silky, refreshing, almost decadent.
Bring salinity down to the sweet spot and everything runs smoother — the tiles, the pump, the surfaces you’ve invested in. Less corrosion, more longevity, and quiet savings that build over time. With less salt to add each season, your wallet breathes easier too.
Add a system that keeps itself clean, remembers your schedule, and pushes harder when you need it — and suddenly, your pool doesn’t feel like maintenance. It feels like luxury.
The AquaSolis Low-Salt series delivers smart, self-cleaning chlorination at just 1200–1800 ppm with a reverse-polarity titanium cell, battery-backed digital timer, and clear status LEDs — reliable everyday care that runs itself.
Sized for mid-size residential pools, the CLS+25 delivers a steady 25 g/hr of output – suited to pools up to 75,000 L in mild/cool climates (adjust down for warmer regions; see Sizing). An isolation-transformer power pack and weather-shielded enclosure provide quiet, dependable operation outdoors, and BOOST adds extra output on busy swim days.
Why Choose the AquaSolis CLS+ Chlorinator?
-
Lower Maintenance, More Swim Time
Reverse-polarity self-cleaning titanium cell with an adjustable reversing cycle (set for local water hardness) minimises scale and manual cleans, while smart salinity protection helps optimise performance at low salt levels. -
Battery-Backed Scheduling You Can Trust
Program single or dual daily cycles and forget it—the timer holds your schedule through power cuts, with simple AUTO/ON/OFF control and BOOST on demand when you need a quick recovery. -
Clear, Comfortable Water
Consistent chlorine delivery sized to your pool for year-round clarity. Low Salt (LS) operation at 1200–1800 ppm provides a softer feel and reduced salinity compared to standard systems. -
Easy Setup & Everyday Control
Retrofit-friendly for Astral Pool E/VX/V/eQ/Halo* with a quick-connect cell, intuitive output control, and clear status LEDs for salt and flow. 
Made in Australia. Built for Australian Conditions.
Weather-shielded power pack with UV-stable, corrosion-resistant components stands up to sun, salt air, and summer heat.
Design & Functions Highlights
- Digital Timer: Set daily cycles (AUTO/ON/OFF) with battery backup so schedules stay on track. Need extra sanitising after a busy swim day? Hit BOOST for a timed high-output run.
- Cell Switch & Polarity Change: Simple On/Off for the electrolytic cell. Toggle Off → On to reverse direction (polarity) when needed—handy for service checks and maintaining self-cleaning performance.
- Circuit Breaker: Resettable protection for the cell circuit to help guard against overloads.
- Pump Outlet / AC Socket: Plug the filter pump into the power pack so filtration and chlorination run in sync–tidy, set-and-forget scheduling.
- Cell Electrode: Premium titanium plates with reverse-polarity self-cleaning for efficient production and reduced scale build-up. Compatible with salt or mineral blends.
- Chlorine Output LEDs: At-a-glance production bar with 10 steps (each ≈10%) so you can check output quickly.
- Output Control (+/–): Fine-tune chlorine output up or down in small, precise steps–dial in exactly what your pool needs.
- Status Indicator LEDs: Clear, colour-coded alerts for salt level, water flow, internal temperature, plus a forward/reverse indicator for cell direction.
- Flow Switch (if installed): Automatically pauses chlorine production when flow is insufficient–protects the cell and helps prevent gas build-up. Restarts once normal circulation returns.
Key Features
- 25 g/hr chlorine output sized for pools up to 75,000 L in mild/cool climates (see Sizing Guide)
- Self-cleaning titanium cell with an adjustable reversing cycle to minimise scale and manual cleans
- Battery-backed programmable timer with AUTO/ON/OFF plus BOOST for quick recovery after heavy use
- Simple output control with a 10-step LED bar (0–100%) for at-a-glance checks
- Smart high-salt power regulation to reduce waste heat and trim energy use
- Clear status indicators for salt level, water flow and internal temperature, plus forward/reverse direction
- Versatile installation with wall-mount bracket and 40 mm / 50 mm PVC compatibility using supplied 50/40 reducers
- Quick-connect, watertight cell lead and tidy housing for a clean install
- Generic/Not Original Chlorinator – retrofit-ready for Astral Pool E/VX/V/eQ/Halo* systems
- Low-salt operation 1200–1800 ppm (ideal 1500); also suits mineral blends and all common pool surfaces
- Optional flow-safety pause on low flow (if installed)
- 2-year residential / 1-year commercial warranty
Digital Timer
Status Indicator LEDs
LED Indicator Chart
Your Pool, On Cruise Control
Enjoy a softer swim at lower salinity with simple, set-and-forget control. The self-cleaning titanium cell keeps output steady, and the battery-backed timer runs daily cycles automatically. At-a-glance LEDs confirm salt and flow, BOOST handles busy days, and seamless Astral Pool* retrofits compatibility, it quietly makes pool life easier every day.
Sizing Your Chlorinator
Note: The sizing chart is a general guide. Final system selection should consider pool volume, climate zone, bather load, and water balance.
Technical Specifications
| Model | CLS+15 | CLS+15LS | CLS+25 | CLS+25LS | CLS+35 | CLS+35LS |
|---|---|---|---|---|---|---|
| Chlorine Output (g/hr) | 15 | 15 | 25 | 25 | 35 | 35 |
| Calcium Hypochlorite Equivalent (65%) | 23g | 23g | 38g | 38g | 54g | 54g |
| Sodium Hypochlorite Equivalent (12.5%) | 120ml | 120ml | 200ml | 200ml | 280ml | 280ml |
| Input Voltage (VAC) | 220–240 | |||||
| Input Amps** (AAC) | 0.53 | 0.53 | 0.70 | 0.70 | 0.86 | 0.86 |
| Input Power (Watts) | 120 | 120 | 157 | 157 | 192 | 192 |
| Output Voltage (VDC) | 25.0 | |||||
| Output Amps** (AAC) | 2.8–3.2 | 2.8–3.2 | 3.8–4.2 | 3.8–4.2 | 4.8–5.2 | 4.8–5.2 |
| Frequency (Hz) | 50/60 | |||||
| Salt Level (ppm) | 3000–4000 (3500 ppm ideal) |
1200–1800 (1500 ppm ideal) |
3000–4000 (3500 ppm ideal) |
1200–1800 (1500 ppm ideal) |
3000–4000 (3500 ppm ideal) |
1200–1800 (1500 ppm ideal) |
(**) All readings taken at 230 Vac and in optimum salt water ppm, with a water temperature of 26˚C.
Easy Installation & Maintenance
- Simple Setup: Install the cell on the return line after the filter/heater/solar/heat pump. Horizontal mounting is recommended (creates a natural gas trap); fits 40 mm or 50 mm PVC using the supplied 50/40 reducers.
- Low Maintenance: Reverse-polarity self-cleaning keeps scale down; occasional cell inspection/cleaning is all that’s usually required (follow acid-cleaning safety in the manual).
- Water Chemistry Matters: Run the chlorinator in properly balanced water (per Langelier index). Keep salt in range for your model to optimise performance and energy use.
| Parameter | Ideal Reading / Range | How to Increase | How to Decrease | Testing Frequency |
|---|---|---|---|---|
| Free Chlorine (ppm) | 1–3 (max 4) | Raise output or run time; add chlorine if needed | Lower output or run time | Weekly |
| pH | Concrete: 7.4–7.6 Fibreglass/Vinyl: 7.2–7.4 |
Add pH increaser (soda ash / sodium bicarbonate) | Add hydrochloric/muriatic acid | Weekly |
| Total Alkalinity (ppm) | Concrete: 80–150 Fibreglass/Vinyl: 80–120 |
Add sodium bicarbonate | Add hydrochloric acid (small doses) | Every 4–6 weeks |
| Calcium Hardness (ppm) | Concrete: 250–300 Fibreglass/Vinyl: 150–190 |
Add calcium chloride | Partially drain and refill | Every 3 months |
| Stabiliser / Cyanuric Acid (ppm) | 30–60 | Add stabiliser (CYA) as directed | Partially drain and refill | Every 4–6 weeks |
| Salt Level (ppm) CLS+ Standard |
3000–4000 (ideal 3500) |
Add pool salt / approved mineral blend | Partially drain and refill | Every 4–6 weeks |
| Salt Level (ppm) CLS+ Low Salt |
1200–1800 (ideal 1500) |
Add pool salt / approved mineral blend | Partially drain and refill | Every 4–6 weeks |
Important: Add salt to the shallow end and allow it to dissolve—never into the skimmer. For mineral salts, allow ~20–30% more product to reach target TDS.
- Seasonal Tips: In summer, a typical schedule is ~4 hrs morning + 4 hrs evening; in winter, reduce run time by up to 50% based on chlorine readings. BOOST is available for short, high-output recovery.
In The Box
- 1 x Power Pack
- 1 x Cell & Cell Housing with Unions
- 2 x 50/40 Reducing Bushes
- 1 x Wall Mounting Bracket with Level
- 2 x Green Wall Plugs with Screws
- 1 x Manual and Warranty Card
Frequently Asked Questions
What do the warning lights mean?
Warning LED ⚠
- Solid Green — normal
- Solid Orange — low salt
- Blinking Orange — high salt
- Solid Red — internal over-temperature
- Blinking Red — low/no flow
Direction LED (+/–)
- Solid Green — forward
- Blinking Green — reverse
Flow light blinking – what should I check?
Confirm the pump is running, remove air locks, backwash/clean filters, and empty skimmer/pump baskets. Check cell plug/contacts. You can press + or – to prompt a restart once flow returns.
Why is chlorine output lower in cold water?
Cold water reduces output naturally; as a guide, for each 1°C below 28°C, output can drop by ~2–3%.
How long should I run the system?
Typical schedules: summer ~4 hrs morning + 4 hrs evening; winter ~2–3 hrs morning + 2–3 hrs evening (adjust to your test results).
How do I use BOOST?
Use the LCD timer’s BOOST mode (via MODE) for an adjustable timed boost, or activate “Chlor Boost” by holding + and – together (adjustable duration). Cancel by pressing MODE (timer BOOST) or holding +/– again (Chlor Boost).
Can I change how often the cell reverses?
Yes. The unit changes direction automatically (factory ~7 hours) and can be adjusted between 4–10 hours to suit local water hardness.
How do I clean the cell safely?
Switch to OFF, remove the electrode, and clean using a purpose-made salt cell cleaning solution or a 1:10 acid-to-water mix (always add acid to water). Rinse thoroughly, refit with a lightly greased O-ring, and hand-tighten. Wear eye and hand protection.
Do I need to plug the pump into the power pack?
Yes. Use the power pack’s pump outlet so chlorination only runs with flow. If you don’t, install a suitable flow-safety control to prevent gas build-up.
Any salt-handling tips?
Add salt to the shallow end and brush to dissolve; never add directly to the skimmer. Keep within the target range for your model for best performance.
Does the timer battery need servicing?
The LCD timer uses a CR2032 coin cell. Replacement must be done by a licensed electrician or approved specialist.
(*) Disclaimer: Any mention that this is a "Generic/Not Original" product means that it is not an original product, and is not manufactured, approved, or endorsed by the original manufacturer. AquaSolis is an independent company and has no affiliation or association with the named original equipment manufacturer. Brand names are used solely for compatibility identification.
| SKU | CLS+25LS |
|---|---|
| barcode | CLS+25LS |
| Package Length | 42 cm |
| Package Width | 40 cm |
| Package Height | 25 cm |
| Manufacturer | AquaSolis |
| Model | CLS+25 Low Salt |
| Specific Product Type | Pool Chlorinator |
| Shipping Type | Standard |
| Warranty | 2 Years |
| Self Cleaning | Yes |
| Retro Fits | AstralPool E, VX, V, eQ, and Halo Series |
| Output | 25 grams per hour |
| Pool Size | Up to 75,000L |
| batterybackup | No |
| timeclock | No |
| Salt Levels | 1200–1800ppm (1500ppm ideal) |
| Plumbing | 40/50mm |
