Pool & Spa Water Conditioners
For pools and spas, it’s a water conditioner that keeps calcium in suspension, so it is available to balance the pH of the pool. A conventional softener takes out the calcium which is bad for the pool – Aqua-Rex leaves it in the water but stops it sticking to tiles so it is good for pools.
Water Conditioner for your Swimming Pool & Spa
- Stops Scaling & Salt Cells Build Up.
- 20 minute easy installation. No Tools Needed.
- Removes Existing Limescale as well as prevents future build-up.
- Less Pool Cleaning time.
- No salt. No chemicals. No changing cartridges. Install it and forget it.
- Fits any pipe material up to 2″ diameter.
- Item weight – 1.6 pounds.
- Package dimensions – 10” x 8” x 3”
- Soft Water Model number – WK1-P
- 100 DAYS MONEY BACK GUARANTEE
- 20 YEAR WARRANTY


POOL & SPA Water Conditioner FAQ
Is Aqua-Rex Better on your eyes for swimming?
It has no difference for your eyes. The chlorine is what hurts your eyes.
Is Aqua-Rex Waterproof?
Aqua-Rex WK1Punit is IP66 rated, but the Electrical transformer that plugs into the socket is not.
Is Aqua-Rex safe to use on my salt cell?
Absolutely!
Is Aqua-Rex Better for Filters?
Yes, cleaner water going in less clogging can help make your filters last longer.
Does Aqua-Rex Affect Biocide?
Yes, it makes them work better, so you use less chemicals.
Will Aqua-Rex Cause Algae?
No
Will Aqua-Rex Kill Algae?
It won’t kill algae directly but it will reduce their phosphate food and enhance the effect of the biocide











Water Conditioner for your Swimming Pools & Spas by Aqua-Rex®
TIRED OF HARD WATER STAINS ON YOUR SWEIMMING POOL OR SPA?
SET IT AND FORGET IT.
Aqua-Rex needs no chemicals, servicing, or maintenance
Calcium scale on tiles and pool walls breaks up and falls away. Stops calcium scale along the water line. Saves bead blasting.
On Saltwater systems it keeps the plates cleaner. Saves de-scaling.
Reduces phosphates in the water and makes it much clearer.
Saves chemicals.
Clears calcium scale from the filter media. Reduces need for back washing.
Saves water.
Cleans scale from the water heater. Makes it operate more efficiently.
Saves energy.
Helps kill bacteria so you have less need to “shock” treat a pool.
Saves chemicals.
Reduces TDS so less need to dump water. Saves water.
Aqua-Rex requires no servicing or chemicals.
Low running costs, about $20 a year in electricity.
What sort of outlet does it need?
The unit is completely weatherproof, but the transformer is rated for indoor use only, so the outlet needs to be weather protected. The low voltage cable is 10 feet long and it can be easily extended with bell wire to whatever distance you need.
Does it need any maintenance or servicing?
Absolutely none at all. You set it and forget it. It has a design life in excess of 25 years.
Does Aqua-Rex get rid of all scale?
Aqua-Rex will get rid of Calcium scale but will have little or no effect on Silica scale. Silica scale is only an issue in a few areas of the country where Silica rich water is drawn from wells. Silica scale won’t react to acids such as Vinegar or Muriatic and can only be removed with abrasives. Sometimes you will find all the scale disappears and then a thin layer recurs, and this is likely to be Silica. Scale around the grout line comes from behind the tile and is mostly silica so Aqua-Rex won’t get rid of it.
Are there any harmful side effects?
None.
Will it work on the home as well?
Aqua-Rex works as an alternative to a conventional water softener in the home. See our website
Unit is fully waterproof so it can be installed outside.
Easy and quick install. No pipes to cut.
Where do I install Aqua-Rex Water Softener?
Just wrap the two aerial wires around the pipe after the circulation pump and secure them with the plastic ties. You don’t need to cut the pipe or do any kind of plumbing.
Does it treat all the water in the home?
Any type of pipe material is suitable and any size of pipe up to 2 inch. If the pipes are bigger than 2 inch, call us for advice on larger Aqua-Rex units.
WHAT IS AQUA-REX AND HOW DOES IT WORK?
Aqua-Rex is a radio transmitter that generates ultra-high frequencies which are transmitted into the water by using two aerials wrapped around the outside of a pump. Normally the unit is fitted after the circulation pump and before the filter heater. The radio signals travel through the water in both directions, upstream and downstream from the point of installation and they will also carry over into the swimming pool, treating all the water in the pool all the time.
These radio waves are at very low power and cause no side effects either to people, animals or fish. They work by disrupting the formation of scale on surfaces such as pool walls, so the scale forms instead as a powder in suspension in the water. They also break up existing scale by attacking the point where the scale has bonded to a surface such as a water.
Performance Tested under IAPMO IGC 335-2018 Rapid Scaling Test and proven to reduce scaling
by up to 83% at 180OF
Aqua-Rex is scientifically proven to improve the effectiveness of Biocides, so you need less chlorine or other chemicals.
Quote from a Pool Service Company email sent to Aqua-Rex
Subject: install at ABK From Clearwater Oasis LLC
The Aqua-Rex was installed on November 21st, 2011, 8 weeks ago. Water tests were checked by them and us throughout this time frame. Beginning water test was TDS (dissolved solids) 4800, Salt 3000, Chlorine level 2.0 (this was free and total), Ph 7.0, alkalinity 60, Calcium 170, CYA 10 (indoor pool).
The final test was pulled January 11th, 2012. Results were TDS 4000, Salt 2500, Chlorine level 1.0, ph 7.5, alkalinity 89, Calcium 236. CYA 20. TDS levels have decreased; however, salt level was down reducing this level. TDS Levels may have reduced by 300ppm.
Customer has stated they have not had to scrub tile line. They have also begun shocking every other week instead of weekly, with system on. This is with a bather load of 350-450 children in the pool per week and a constant temperature of 88 deg. They also have not had to use the phosphate remover on the pool.
Thank you Clearwater Oasis LLC
End Quote
These results were from an indoor saltwater pool which was constantly monitored. All parameters point to the results to be expected from Aqua-Rex. TDS reduction was not a big issue in this indoor pool, but phosphate reduction was very significant as they were able to stop dosing to remove phosphates. Phosphates reduce the effectiveness of the saltwater process and also reduce clarity of the water.
How do our Water Softeners Work?
How do I know if I have hard water?
You most likely have hard water if: You have a white crust on your
Does Aqua-Rex work on city water supply?
Yes, Aqua-Rex has a unit for that
Does Aqua-Rex work on gas tank heaters?
Yes, Aqua-Rex has a unit see our Water Softeners for Gas Water Heaters WK1.
Does Aqua-Rex work on electric tankless heaters?
Yes, Aqua-Rex has a unit see our Water Softeners for Electric Water Heaters WK1-E.
I have a big house. Does Aqua-Rex still work?
Yes it does! Whether your home is 1200 square feet, or 12,000. Aqua-Rex Water Softeners treats all the water without any lag in performance.
Will Aqua-Rex interfere with my radio or my baby monitor?
Not at all. Our Water Softeners are baby safe too.
I rent my home – Can I still use Aqua-Rex Water Softeners?
Of course! Fast, Easy to install and uninstall. Aqua-Rex requires no tools or plumber installations. DIY, is easy to remove and take with you when you move homes even works in any state, county, City Water or Well Water system.
Are Aqua-Rex Water Softeners safe to drink and cook with?
Yes, it’s very safe, there isn’t any unsafe about Aqua-Rex treated water. From Testing & Reviews people prefer our Water Softeners over the others.
Is Aqua-Rex safe for Clothing and Linens?
Water treated with Aqua-Rex Water Softener units are also great for your clothes and much gentler on your finer fabrics like sheets & towels. Also saves on Fabric softeners.


Las Vegas, NV 89102
8:00 am to 8:00 pm
Saturday & Sunday – CLOSED



We off the Best Water Softener Units for your home. 100% Money Back Guarantee to help soften your hair and skin. Lab tested. Local Las Vegas customers can buy online and or pick up at our office. We offer great customer service and are more than happy to help you with the correct water softener for your home.
Easy to move. Renters Rejoice you now have a water softener that you can install yourself and then take it to your new home.
A Water Softener that goes in a Suitcase!
Used for most residential applications on city water with gas water heaters. Contact us with any questions. We talk Water Softeners.
For Electric Water Heaters or for homes on Well Water. Gas or Electric for Well Water. Quick and Easy installation Water Softeners.
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