Theralux Spa Minerals - For use with Theralux Spa Sanitizer
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Delivery and Shipping Info*
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Theralux's 100% Earth Minerals (Enhanced Mineral Additive)
Note: You can also use SpaCare Minerals. Pure magnesium salts.
A unique blend of natural occurring minerals, rich in magnesium that when added to a spa enhances water quality and provides health and wellbeing benefits to the bather.
By using the 100% Earth Minerals, you are creating a magneisum rich mineral bathing destination in your own backyard, allowing you and your family to bathe in soft and natural feeling water. It is simple, affordable and life changing.
Minerals are not a sanitiser. They are used in conjunction with an approved sanitiser.
Features & Benefits
Theralux 100% Earth Minerals (Enhanced Mineral Spa Additive) will provide the following benefits to you:
- Produce soft and natural feeling water
- Moisturise your skin as you swim
- Gentle on sensitive skin (perfect for those you suffer from eczema and dermatitis)
- Provide natural relief to muscular complaints
- Relaxes your nervous system
- Conditions your hair, allowing you to easily comb your hair after a swim
- Produce a mild flocking agent enhancing water providing crystal clear quality
- Produce an anti-scaling agent assisting in giving longer life to salt cells, tile lines and other areas of your pool or Spa that are susceptible to calcium build up
The additive will moisturise your skin whilst you swim and will not leave your body feeling dry and in need of a shower. Bathers should experience a pleasant feel with little to no taste. For those with sensitive skin, and other sensitive skin conditions like eczema and dermatitis, then Theralux will most certainly be a more gentle and softer body of water.
An additional feature of the Theralux 100% Earth Minerals is that they have mild flocking capabilities which help to filter the extremely fine microscopic particulate matter (dust, dirt etc) providing crystal clear water all year round. This also reduces your requirement for specialty chemicals like clarifiers which means more money in your back pocket. Even further, it will also assist in maintaining better water balance and reduce pH fluctuation, meaning you can spend more time enjoying your spa!
The Theralux 100% Earth Minerals can be added to any pool or spa to improve the swimming experience, however we recommend using the 100% Earth Minerals in conjunction with the entire Theralux Mineral Pool System to unlock the full potential of natural mineral bathing.
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
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 |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly 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 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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