Coming Soon - BWT LSC Salt Water Chlorinator - Self Cleaning - 15g/hr to 100g/hr
Coming Soon - BWT LSC Salt Water Chlorinator - Self Cleaning - 15g/hr to 100g/hr - is temporarily out of stock and will ship as soon as it's available.
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Don't Guess - Ask Us!
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Coming Soon - BWT LSC Salt Water Chlorinator - Self Cleaning - 15g/...
Coming Soon - BWT LSC Salt Water Chlorinator - Self Cleaning - 15g/hr to 100g/hr - is temporarily out of stock and will ship as soon as it's available.
BWT LSC Salt Water Chlorinator - Auto Self Cleaning
Long Life Cell design with up to 25 percent more cell life, 1 percent output adjustment, auto-pilot mode and a 5 year warranty.
- Physically Stocked, unlike most 'drop-shipping' websites.
- Shipped from VIC, NSW, QLD, WA
The BWT LSC is a straightforward, well built salt chlorinator for pools that do not need full automation. It is built around the Long Life Cell concept - an extra-large cell running at lower current density, which BWT rates for up to 25 percent longer cell life than a conventional cell of the same output. Automatic self cleaning is fitted across every model in the range.
The onboard micro-computer makes it a set-and-forget unit, with a back-lit LCD, output adjustable in one percent steps, auto-pilot mode and a multi-function timer that runs both the chlorinator and the filter pump.
Where the Diamond Mineraliser adds pool and spa automation, valve control and app connectivity, the LSC concentrates on doing the sanitising job reliably and simply. Eight output sizes cover everything from a small courtyard pool to a 200,000 litre body of water.
Key Features
- Long Life Cell - extra-large cell at lower current density for up to 25 percent longer cell life
- Automatic self cleaning on all models
- Smart micro-computer controller system
- Precision output adjustment - chlorine output settable to 1 percent
- Back-lit digital LCD display and easy to use menu
- Auto-pilot mode - set and forget operation
- Intuitive navigation buttons and multi-function timer
- High salt / mineral indicator with automatic power reduction when levels are too high
- Salt and mineral level test function
- Run dry pump protection
- Water temperature reading displayed on screen
- Super chlorinate mode for high use periods
- Backwash function for sand filters
- Spa mode - automatically resets chlorine output to 10 percent
- Super capacitor backup on the timer - no batteries to replace
Model Line-up and Recommended Pool Sizes
| Model | Product Code | Chlorine Output | Max Pool Size (hot climates) |
|---|---|---|---|
| BWT LSC-15 | BWTLSC15 | 15 g/hr | 30,000 L |
| BWT LSC-20 | BWTLSC20 | 20 g/hr | 40,000 L |
| BWT LSC-25 | BWTLSC25 | 25 g/hr | 50,000 L |
| BWT LSC-30 | BWTLSC30 | 30 g/hr | 60,000 L |
| BWT LSC-35 | BWTLSC35 | 35 g/hr | 70,000 L |
| BWT LSC-50 | BWTLSC50 | 50 g/hr | 100,000 L |
| BWT LSC-75 | BWTLSC75 | 75 g/hr | 150,000 L |
| BWT LSC-100 | BWTLSC100 | 100 g/hr | 200,000 L |
Operating Modes
The MODE button steps through the available operating modes:
- ON - continuous operation
- TIMER - runs to the programmed timer blocks
- SUPERCHLORINATE - maximum output to recover water quality
- BOOST - short term output increase
- SPA - automatically resets output to 10 percent for spa volumes
- BACKWASH - suspends chlorination during sand filter backwash
Timer Setup
The timer screen shows a 24 hour block display. Use the up and down buttons to move the cursor above or below each block, then press ENTER to toggle that block between:
- Blank - no operation
- C - chlorinator and pump operation
- P - pump only operation
This lets you run the filter pump without chlorine production during periods where circulation is wanted but sanitiser output is not.
Salt Levels
- Sodium salt: 3,000 - 7,000 ppm
- Mineral salts: 3,500 - 4,000 ppm
Warranty
- 5 years - power pack
- 5 years or 12,000 hours - cell
Sizing Guidance
Chlorinator sizing is driven by pool volume, water temperature, bather load and how many hours a day the filter pump runs. The maximum pool sizes above assume hot climate conditions. If your pool sits at the top of a model range, or you run short filtration hours, step up to the next output size rather than running a smaller unit at 100 percent all season - a cell held flat out will wear out well before its rated life.
Note: This product must be installed and serviced by a qualified pool equipment technician or licensed professional. We carry more spare parts than anyone.
Manufacturer Brochures, Manuals & Part Numbers
Need specifications, cell part numbers, wiring detail or more product information? See the manufacturer documents:BWT LSC Chlorinator Brochure | LSC Chlorinator Instruction Manual
To the layperson, plumbing sizes and their names can be confusing due to the nominal sizes and naming conventions used.
This is not something we made up. Plumbers and manufacturers have used nominal (meaning ‘by name only’) sizing for decades.
Simply put, in plumbing, named sizes are often not the actual measurements of the pipe, fitting, or part. A PVC pipe called “50mm” or “2"” does not measure 50 mm anywhere. Instead, it follows nominal sizing, an internationally-standardised naming system.
Almost all fittings we use in the pool & spa industry use “pressure PVC” pipe & fittings. Do not confuse with “DWV” or other pipe & fittings and their names and sizes.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
To reiterate, these are nominal sizes and are designed to fit matching fittings — not to measure what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems and other plumbing areas so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate.
Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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BWTLSC15
