The Puretec SOL40-E3 is a WaterMark approved domestic water softener designed to reduce hardness minerals and the scale and spotting associated with hard water.
It combines Puretec's E3-matic volumetric control valve with a 40 L/min service flow rate and automatic regeneration based on programmed water hardness and actual water consumption.
The SOL40-E3 is a genuine ion-exchange water softener. Unlike cartridge-based antiscale systems, it requires water-softener salt, a drain connection and electrical power for the automatic control valve and regeneration process.
*Puretec's current product listing states 18,000 litres based on water hardness of 100 ppm. Actual capacity between regenerations changes with incoming hardness and programmed settings.
Hard water contains dissolved minerals, particularly calcium and magnesium, that can contribute to scale deposits and spotting.
The SOL40-E3 uses water-softening media and regeneration to reduce hardness before the treated water continues through the property.
Puretec specifies the SOL40-E3 for reducing calcium and minerals associated with hard water.
Reducing hardness can reduce scale formation on compatible plumbing fixtures and water-using equipment.
Puretec lists reduced scaling and spotting as key functions of the Softrol™ water-softening range.
The SOL40-E3 is designed to reduce water hardness rather than simply alter how hardness minerals behave.
Its softening media is periodically regenerated using water-softener salt. The electronic E3-matic valve monitors water usage and manages the regeneration process automatically according to the programmed hardness and system settings.
If measurable hardness reduction is the treatment objective, this type of ion-exchange softener performs a different job from salt-free scale-control media.
The SOL40-E3 uses Puretec's Volumetric E3-matic valve.
Rather than regenerating simply because a fixed number of days has passed, the E3 system monitors water consumption and uses the programmed hardness information to determine when regeneration is required.
Puretec lists the SOL40-E3 with a nominal capacity of 18,000 litres based on hardness of 100 ppm.
That figure should not be treated as a fixed number of litres between regenerations for every property. Harder incoming water consumes the softening capacity more quickly, while lower-hardness water places less demand on the media.
This is not a salt-free system.
Puretec's SOL-E3 installation guide requires suitable water-softener salt to be added to the integrated brine tank. The salt is used during regeneration to restore the softening media for continued hardness reduction.
Puretec lists a maximum salt storage capacity of approximately 50 kg.
The salt level needs to be checked and replenished as required by water use, hardness and regeneration frequency.
The SOL40-E3 softening resin has a manufacturer-listed free-chlorine tolerance of 1 ppm.
Puretec states that high chlorine levels can permanently damage the softening resin and recommends carbon pre-filtration where chlorine exceeds this level. Puretec also recommends a carbon pre-filter more generally to help protect against chlorine spikes and prolong resin life.
Puretec specifies the softener for installation in the water supply line before the water heater.
Where other filtration equipment is installed, the correct order should be selected around the water analysis and Puretec installation guidance.
| Specification | Puretec SOL40-E3 |
|---|---|
| Model | SOL40-E3 |
| Product Type | Softrol™ volumetric domestic water softener |
| Valve | Volumetric E3-matic |
| Service Flow Rate | 40 L/min |
| Nominal Capacity | 18,000 litres based on 100 ppm hardness |
| Operating Pressure | 138–862 kPa |
| Pressure Limiting | Approved pressure limiting device required where line pressure exceeds 500 kPa |
| Operating Temperature | 0–48°C; protect from freezing |
| Electrical Connection | 240V / 50Hz listed in current SOL-E3 user guide |
| Inlet / Outlet | 25 mm / 1" |
| Drain Connection | 5/8" |
| Overflow Connection | 5/8" |
| Width | 350 mm |
| Height | 1125 mm |
| Depth | 490 mm |
| Dry Weight | 37 kg |
| Maximum Salt Storage | 50 kg |
| WaterMark | WaterMark approved |
| Replacement Media Kit | Puretec RMK-SOL40 |
Allow additional room for plumbing, drain and overflow lines, electrical connection, opening the cabinet and replenishing salt.
Puretec states that SOL-E3 installation should be completed by qualified tradespeople.
A conventional water softener regenerates its media, so the SOL40-E3 requires a suitable drain connection.
Puretec lists a 5/8" drain connection and a separate 5/8" overflow connection.
Puretec lists an operating pressure range of 138–862 kPa for the SOL-E3 range.
However, where line pressure exceeds 500 kPa, Puretec specifies that an approved pressure limiting device must be installed to comply with the applicable Australian and New Zealand plumbing requirements.
The SOL40-E3 is designed primarily for hardness reduction.
| Feature | SOL30-E3 | SOL40-E3 |
|---|---|---|
| Valve | Volumetric E3-matic | Volumetric E3-matic |
| Service Flow | 30 L/min | 40 L/min |
| Current Puretec Nominal Capacity | 12,000 litres | 18,000 litres |
| Connection | 25 mm | 25 mm |
| Dry Weight | 29 kg | 37 kg |
Capacity figures are affected by incoming hardness. System selection should consider both peak flow and the actual water analysis.
Check the brine tank and replenish appropriate water-softener salt as required.
Puretec lists the RMK-SOL40 replacement media kit specifically for SOL40 systems.
If a Puretec whole-house pre-filter is fitted, service its cartridges according to the applicable product instructions.
Puretec recommends regularly examining the system for leakage or deterioration.
Hardness testing can be used when commissioning or checking softener performance and settings.
The E3 valve should remain correctly programmed for the incoming hardness and installation conditions.
Optional bypass assembly for testing and maintenance.
Optional blending valve where partial hardness removal is required.
Puretec total-hardness titration test kit for checking water hardness.
Optional microswitch for automation of compatible external equipment.
Puretec lists SoftenerSafe media as an accessory for compatible maintenance applications.
Genuine Puretec replacement media kit for the SOL40 water-softener system.
Puretec currently lists the SOL40-E3 with a 6-year warranty, structured as 1 year parts and labour plus 5 years parts only, excluding consumables and subject to Puretec's warranty terms.
Puretec also offers an extended warranty arrangement for qualifying Softrol™ installations.
Puretec currently identifies qualifying pre-filter models including WH2-55, WH2-60, FilterWall F3, F4, F5 and F6.
Order the Puretec SOL40-E3 for delivery to supported Australian locations where you already have an appropriately qualified installer.
Consider an appropriate Puretec whole-house carbon filtration system where chlorine protection or broader whole-house filtration is required.
Professional installation may be available in eligible Brisbane and Gold Coast service areas, subject to site access, drainage, power and plumbing requirements.
It reduces hardness minerals such as calcium and magnesium to reduce scaling and spotting associated with hard water.
Puretec lists a service flow rate of 40 litres per minute.
Puretec's current product listing states 18,000 litres based on hardness of 100 ppm. Actual capacity between regenerations changes with water hardness and system settings.
Yes. The SOL40-E3 uses water-softener salt as part of the regeneration process.
The current SOL-E3 user guide lists a maximum salt storage capacity of 50 kg.
Yes. The E3-matic electronic control valve requires power. Puretec's current user guide lists a 240V / 50Hz electrical connection.
Yes. The system requires drainage for regeneration and also has a separate overflow connection.
There is no universal fixed number of days. The E3-matic valve uses volumetric control and calculates regeneration according to programmed hardness and water consumption.
Yes. Puretec identifies the SOL40-E3 as a WaterMark approved water softener.
The current manufacturer specifications list 25 mm / 1-inch inlet and outlet connections.
Puretec lists 138–862 kPa operating pressure. An approved pressure limiting device is required where the line pressure exceeds 500 kPa.
The SOL40-E3 is a water softener, not a carbon chlorine filter. Puretec recommends suitable carbon pre-filtration to protect the softening resin from chlorine.
The exact requirement depends on incoming water, but Puretec recommends carbon pre-filtration to protect against chlorine spikes and prolong resin life. High free-chlorine levels can damage the resin.
No. The SOL40-E3 is a conventional regenerating water softener using softening resin and water-softener salt.
Puretec lists the RMK-SOL40 as the replacement media kit for SOL40 systems.
Professional installation may be available in eligible Brisbane and Gold Coast service areas where the site can accommodate the required water connections, drain, overflow, power supply and commissioning requirements.
Purchase the Puretec SOL40-E3 without installation where you already have an appropriately qualified tradesperson.
System sizing, pressure, flow, salt, drainage and pre-filtration requirements are matched to current Puretec product information rather than generic softener claims.
Installed Today can also support eligible local installations where water analysis, plumbing, drainage, power and site access are suitable.
The Puretec SOL40-E3 Softrol™ Water Softener is designed for properties that require genuine hardness reduction and need a service flow rate of up to 40 L/min.
It uses Puretec's volumetric E3-matic valve, requires water-softener salt, power and drainage, and is listed with a nominal 18,000 litre capacity at 100 ppm hardness. The cabinet measures approximately 1125 mm high × 350 mm wide × 490 mm deep and has a maximum salt storage capacity of 50 kg.
Before ordering, test the incoming hardness, check chlorine and other water conditions, confirm sufficient flow capacity, allow for the 25 mm plumbing connection, drain, overflow and power supply, and consider suitable Puretec whole-house pre-filtration to protect the softening media. Correct sizing and commissioning are important because regeneration frequency and practical capacity depend on the actual incoming water and household consumption.
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