The use of some hot tub chemicals is essential to kill bacteria and keep your tub safe to use. There are many sanitising options to choose from, differentiated by price, ease of use environmental impact.
There is no such thing as a 'chemical-free' hot tub, but if you don't want to use the more traditional and harsher options (chlorine or bromine) then you could consider using Aquagarde which uses silver as the sanitiser. You could also consider ecoONE, which is a monthly enzyme treatment that dramatically reduces the need for harsh chemicals.
Compare the options below and click on the image links to find out more.
ecoONE is an easy-to-use, natural enzyme sanitizer that dramatically reduces the need for toxic spa chemicals and reduces filter cleaning.
Simply add a bottle per month and pop a few bromine tablets in a dispenser.
Maintains steady pH levels, so reducing foaming, scum lines and water balance problems.
CLEAN, CLEAR, SAFE, CHLORINE-FREE WATER
Aquagarde is a pleasant smelling, single step hot tub water care solution which utilises the sanitizing effect of silver.
AquaGarde will not irritate skin or eyes. It is very easy to use and has been independently tested against Legionella.
No skin irritation! Chlorine & bromine free.
No hassle! Just add a measured amount weekly.
NO CHLORINE - NO BROMINE
When used on it's own, bromine is easier to use than chlorine and it performs better at the high water temperatures found in hot tubs.
Bromine is less of an irritant and usually smells less than chlorine.
Available in granular or tablet form.
Can be used at low concentration in conjunction with a natural product such as ecoONE or Spa Frog.
The Spa Frog System comprises pre-filled mineral and bromine cartridges.
The Spa Frog mineral cartridge enables spas sanitised with Spa Frog to use 50% - 80% less bromine than hot tubs treated with bromine alone; so there is less chance of skin irritation and less potential for a 'chemical smell'.
Chlorine is the traditional hot tub chemical sanitiser and probably the cheapest, but it is the most toxic and the hardest to use!
f you choose to use chlorine please be aware that it can smell unpleasant and can cause skin irritation to many people, particularly if not used in properly balanced water.
Daily hot tub water maintenance will be required when sanitising your hot tun with chlorine.
Aquablanc is a gentle, odour-less alternative to the traditional methods of disinfecting your hot tub water. The chemical in the product is Active Oxygen.
Active Oxygen systems comprise two components: tablets and a liquid. the two work synergistically together. The tablets must be added with each use, or weekly if the tub isn't used, to destroy bacteria and remove organic impurities. The liquid is a long lasting activator and algae preventer.
Nature2 is a silver-based water purification technology that reduces chemical use and helps to maintain pure, clear water.
The Nature2 cartridge fits inside the core of your spa filter and uses natural minerals to trap bacteria and algae.
The cartridges must be used with a low level of chlorine generated from either tablets or granules.
Maintaining the Total Alkalinity within the correct range is the key to water balancing. If the TA is within an acceptable range the pH will be easy to balance and your sanitiser will work well.
Always balance the Total Alkalinity before the pH
Maintaining the correct pH will ensure your sanitiser works efficiently, protect the pumps and heater from corrosion and help to avoid problems caused by limescale build-up.
Correctly balances pH is essential if you are using Chlorine or Bromine as your primary sanitiser.
If you keep the TA and pH balanced you won't need to worry about scaling unless you live in a very hard water area.
If your water is very soft, you might need to increase the calcium hardness to unsure your sanitiser works efficiently and to control foaming.
A shock (or oxidising) product removes dissolved organic matter and non-filterable waste from the water, including perspiration, urine and decomposing flies! - All best removed!.
Clarifiers 'polish' dull water by removing small suspended particles that filters ordinarily cannot capture. They work by coagulating the tiny particles into larger ones that can be trapped in the filters.
Foaming is caused by pollutants in the water. Common culprits are make-up, body lotion and hair gels Anti-foam is an additive that reduces the foam formation, but unfortunately it can also make the water look dull.
Scum absorbers are foam products that float on top of the hot tub water, soaking up surface oils and grease. They can help reduce foaming and make the water stay clearer for longer.