hs40 Water Conditioner


Designed to protect large homes, commercial kitchens, pools and spas from the destructive effects of scale and biofilm. Decreases the risk of a waterborne pathogenic contamination. The unit fits Copper/PVC/PEX pipes up to 2.5” outer diameter. This is a do it yourself (DIY) product, but professional installation may be available in your area.

(Avg 4.8 out of 5 stars)
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The award-winning hs40 water conditioner provides a chemical-free solution for the harmful effects of scalecorrosionbacteria, and algae in residential, swimming pools, and small commercial applications. In addition, the hs40 increases filtration efficiency via flocculation. This powerful and durable water conditioner provides a fully encapsulated printed circuit board and power supply connection sealed with an ‘O’ ring. The hs40 fits pipes up to 63mm (2.5”) outer diameter.


The hs40 device was awarded the prestigious 2015 Kitchen Innovations Award by the National Restaurant Association. This award recognizes and celebrates cutting-edge equipment and technology that specifically improves the “back of the house” operations and benefits foodservice operators.


Popular Applications

  • Large homes.
  • Residential wells.
  • Restaurant kitchens.
  • Water features.
  • Residential and commercial pools and spas.
  • Residential and commercial water heaters. 


Main Benefits


Financial and Environmental Benefits

  • Reduces energy consumption.
  • Increases the efficiency of water heating equipment and machinery.
  • Eliminates or decreases chemical usage.
  • Decreases the need for chemical safety precautions, storage and disposal.
  • Reduces maintenance costs.
  • Average one year payback period.


Additional Benefits

  • Non-intrusive and easy to install - no plumbing modifications required.
  • Propagates the Hydropath signal along with the entire water system.
  • Provides 24-hour protection.
  • Does not interfere with other electrical systems.


Installation of this device does not replace periodic equipment preventative maintenance procedures. Such as purging your water heater.


HydroFLOW residential devices are designed for ease of installation. With this said, it may be necessary to have your unit installed professionally, depending on the configuration of your plumbing system.  


For additional technical information about these products, please visit our technology page. If you have any questions or wish to locate a local representative, please contact us.


About HydroFLOW hs40

The hs40 is a descaler and chemical Reducer for pools, large homes and commercial kitchens. It is designed to protect your heating system and appliances and make limescale-stained surfaces easier to clean.


HydroFLOW General Brochure HydroFLOW HS40 Pool Brochure HydroFLOW Residential Brochure

Data sheet
PSU Input 100-240V AC 50/60Hz 0.3A Max
PSU Output 12V DC 150mA
Unit Input 12V AC/DC 47-63Hz
Unit I/P power Typical 1.2W
Height 152 mm
Width 118 mm
Depth 45 mm
Weight 300 Grams
Max. Pipe Diameter 63 mm OD
Lead Length 3 M
Indicators Signal Monitor Light
John Fitzpatrick
Bought this device for my pool a couple of months ago. I was having scale build up on my pool stairs and walls it looked terrible. I was going to try softened water but that will eat away tiles on the floor of the pool and make the floor of the pool rough on your feet. After installing the hs40 the scale went away. I'm assuming the filter is now grabbing it instead of it sticking to the walls and stairs of my pool.
Best of the best
This product worked awesome for the issues I was having with my pool. I have recommended it to everyone I know who has a pool. Algae issues gone lowered my chlorine and chemical usage. It's nice to have my eyes not burning every time I take a swim. In my opinion it's not expensive because it works. I'll easily get my money back within a year.
Great for my large home
Installed an HS40 on my large home. It worked excellent in regards to the scale issues I had
Bought for my pool
Purchased this for my pool. Contacted them directly to explain where to install it. So far it's been running for a month and seems to be controlling algae nicely. I plan to start rolling back my chlorine usage in the coming weeks to see how it fares.
Just installed it
Just installed my unit a few weeks ago. Easy to install. Once its been installed for awhile I'll come back and update my review
Very happy with the results on my pool
I decided to wait 6 months before writing this review. I needed something to help with algae build-up in my pool and I don't want to add more chemicals. I'm actually wanting to rid myself of chemical usage other than what is required. This product worked great. My filter is filtering more debris and algae is under control. Pricey product but worth it in the long run and is a positive for my family's health.
Alicia Rey
For our Pool
I had this installed on our pool and it works great!! It helped with the algae problem and we were able to cut back our chlorine usage by almost 1/2. An unexpected benefit was since this product allows us to keep the water hardness we haven't seen any more erosion of the cement stairway going into the pool. The only reason I gave it 4 stars instead of 5 was the price.
Tim Drew
Installed on my pool
Installed this product on my pool. I was so glad to see that I could keep the hardness in my pool without the problems. Anyone who owns a pool knows that if you don't keep the water semi-hard it will start to eat away at the concrete in the floor and sides of the pool. This fixed an issue that I wasn't expecting it to. Great product!
Monica Davis
I'm very impressed! I really noticed it on my glass shower doors, they are crystal clear. Dishes from my dishwasher have no streaks now!