- My water looks clean but there is no chlorine residual reading?
To test for chlorine residual, switch on the filtration system
and turn the chlorinator to maximum output. After a few minutes
take a water sample from the pool. Test this water with your test
kit or take it to your local pool professional. A minimum chlorine
residual of 1 to 3 ppm is desirable. Adjust PH within the range 7.2
to 7.6. Make sure your cell is clean (clean if required). Check
your stabilizer (cyanuric acid) levels. Increase the setting of the
chlorine output control. Adjust total alkalinity to recommend
range. Test for phosphate. Adjust total hardness to recommended
range. Increase meter readings to maximum output by adding salt.
Increase the running time of the filter and chlorinator. Make sure
that the filter is clean and functioning properly.
- A cloud of bubbles is forming in the chlorinator cell?
If the chlorinator and pump are running it is normal for a cloud
of small bubbles to be produced in the cell, indicating chlorine is
also being produced.
- My pool is green and there is no chlorine reading?
A chlorine residual of 1 to 3 ppm is considered desirable. The
solution is to super chlorinate or "shock dose" especially in hot
weather. This procedure raises the chlorine residual to a very high
level for a short period of time and reduces chlorine demand. You
will also need to check your stabilizer (cyanuric acid) levels to
ensure it is between 30-50ppm. Refer to your owner's manual for
step by step instructions on how to shock dose.
- My pool has a strong chlorine odour?
Surprisingly the problem here is not too much chlorine as many
imagine. Chloramines formed by the bonding of chlorine with amines
from sweat, urine and other sources. These chloramines make the
"chlorine"& odour and can also cause eye and skin irritations.
Free chlorine does not smell (up to 10 ppm concentration). The
remedy is to super chlorinate/shock dose. Refer to your owner's
manual for step by step instructions on how to shock dose.
- The walls of my pool/spa are slimy?
This is caused by combined algae and bacteria growth. Scrub down
affected walls and super chlorinate/shock dose using a large shock
dose of liquid chlorine. Refer to your owner's manual for step by
- There is a scale or calcium build up on the electrode of my chlorinator?
There are a couple of causes for this. Firstly your PH maybe
incorrect; test the water and adjust the pH range to 7.2 to 7.6.
Secondly, the total alkalinity may be high; test the water and
adjust total alkalinity to 80-120 ppm. To remedy, clean the scale
from the cell (refer to the maintenance section in your owner's
manual for step by step instructions) and increase the running time
of the filter and chlorinator. Make sure that the filter is clean
and functioning properly.
- My Chlorinator will not switch off and no functions will operate?
Check to make sure that the super chlorinate button has not been
activated. Refer to your owner's manual for step by step
- Can I use Mineral Salts with my Zodiac Chlorinator?
Yes, the latest generation of Zodiac Chlorine Generators (Ei and
TRi) are compatible with any mineral salt blend from any of the
manufacturers found in all good pool shops. Please follow the
manufacturers instructions when using these salts.
- How much salt should I have in my pool?
Zodiac recommends using 4,000ppm-6,000ppm (parts per million) or
0.4%. This concentration is very low and is almost below the
threshold that is noticable to taste which is around 0.5%. In
fact, the salt level is so low it is less than that of a tear
However, latest generation Zodiac Chlorine Generators (TRi and
Ei) are able to withstand dilutions as high as sea water
35,000ppm or 3.5%. This means you can vary the salt
levels to suit your individual needs. If using a mineral salt
blend please check the manufacturers instructions.
- My Chlorinator is working but there doesn't seem to be enough Chlorine?
This could be due to an incorrect balance with your pH
level. pH is the single most important component of water
chemistry and all other factors in the pool environment hinge on
this. Chlorine for example becomes almost completely
ineffective if the pH level is over 8 meaning that it doesn't
matter how much chlorine you have in the pool it lacks any ability
to 'kill' the germs and pathogens in the water. Maintaining
your pools pH level is very important. Zodiac's TRi-pH will
maintain the pH balance for you automatically, dosing pH Down
solution when needed to keep your pool in balance and your chlorine
at its maximum potential.
You should also check the cyanuric acid level of the
water. If this has dropped too low it will mean that your
chlorine is burning off in the sun. Be careful not to overdo
the cyanuric acid however, as it cannot be removed from the water
and can only be diluted by adding fresh water so, maintain the
balance within the recommended levels.