Owning and maintaining a hot tub need not be onerous; simply by keeping on top of the water condition and chemical levels you can easily ensure the water is completely sanitary and that the spa experience is enjoyable for everyone.
Some common water issues are:-
Water is Cloudy
Water is a Milky Colour
Excess Foam
Water is Green
CAUSE
Dead algae particles
Debris from the environment
Bad filtration
Lack of sanitizer (i.e. chlorine/bromine)
High pH and/or alkalinity
Body oils, lotions, and other human elements
Cloudy Water
Cloudy water is often a build up of particles in the water caused by either dirty filters, excess oil, organic matter or incorrect sanitation levels. In order to rectify, clean filters, check water balance levels, add Spa Shock or Spa Sparkle.
As a last resort if these methods do not improve the situation it is advised to drain, clean and refill the Hot Tub with fresh water.
Milky Water
Milky Water is a white film on top of the Hot Tub usually caused by dirty filters, algae, poor water chemistry, insoluble particles. In order to rectify clean filters, check water balance levels, add Spa Shock or as a last resort if these methods do not improve the situation it is advised to drain, clean and refill the Hot Tub with fresh water.
Water has Foam
Foam build up is caused by a reaction between body and cosmetic oils combined with the alkalinity of the Hot Tub water. Body oils and cosmetics such as deodorant, makeup, hairspray, shampoo etc. Ideally you should shower before getting into a hot tub in order to remove any hair gel, skin lotions/creams and to generally cleanse your skin. There are two common types of foam in a spa: A detergent or surfactant-based foam
Usually uniform bubbles often with a rainbow effect on the bubbles when viewed in the right light. This type of foam is common when surfactants mix with oils (soap) or stain and scale inhibitors (surfactants to reduce water tension to reduce scaling from chemicals like calcium) mix with oils to produce soap in the water. Organic Build up
In a spa this is body oils, skin creams, cosmetics etc that accumulate in the water and make varying sized, creamy, scummy bubbles with particles on them. You see this foam most often shortly after shock treating the water.
In order to resolve these issues use Foam Away or part empty your Hot Tub and flush the system.
Green Water
Green is not a good colour for Hot tub water, it indicates that your Hot Tub has active bacteria growing in the water. It is advisable not use until problem is solved, by draining the water out, scrubing all the surfaces with a chlorine solution, rinse out with clean water and refill with clean water. Shock dose the spa with a combination of Chlorine and Non Chlorine.
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