7.- PRACTICAL ADVICES
PROBLEM DIAGNOSTIC SOLUTION
Green water, slippery walls, green
depositions on walls…
Presence of algae due to
low free chlorine levels
o Make a shock treatment.
o Increase free chlorine level up to 10
ppm and add flocculant
o Adjust pH to 7.2 - 7.6
o Filter continuously during 8 hours.
o Sweep pool walls and floor.
o Backwash filter.
o Repeat shock treatment until the
elimination of the problem
Cloudy and/or off-white water,
appearance of white or greyish
incrustations on walls and
accessories…
pH higher than 8.0,
defective filtration, elevated
total alkalinity
o Check filter
o Adjust pH to 7.2 – 7.6.
o Add flocculant.
o Sweep pool walls and floor
o Filter during several hours.
o Backwash filter
Corrosion of accessories,
appearance of brown spots…
High free chlorine
concentrations and/or pH
lower than 7.0
o Adjust pH to 7.2 - 7.6.
o Readjust the production level of the
electrolysis system or filtration time
Eye irritation, clothes and hair
bleaching …
High free chlorine
concentrations and/or pH
lower than 7.0
o Adjust pH to 7.2 - 7.6.
o Readjust the production level of the
electrolysis system or filtration time
Coloured water…. Existence of dissolved
metals
o Make a shock treatment with chlorine
powder (5 g./m
3
).
o Adjust pH to 7.2 - 7.6
o Add flocculant
o Filter continuously during 8 hours.
o Sweep pool walls and floor.
o Backwash filter.
Foams ... High levels of organic
matter in the water
o Empty the necessary amount of water
and replace with fresh water.
o Make a shock treatment.
o Increase free chlorine level up to 10
ppm and add flocculant.
o Adjust pH to 7.2 - 7.6
o Filter continuously during 8 hours
35
To Next Page
Loading...
Need help?
General
