As you are probably aware, eye irritation is something a good majority of people will
experience this swimming season. This is not uncommon because there are several
reasons why this happens. One reason for this problem is having a dirty filter or
pool. If the filter is dirty, it becomes incapable of removing small particulate
matter, chloramines, from the water and therefore it gets into the eyes and irritates
them. The most common form of eye irritation is urine in the water. When urine
is present, the reaction is so intense it will burn the eyes. Urine is basically
ammonia. Ammonia and chlorine do not mix. If you do experience eye irritation,
we recommend that you backwash and/or clean the filter and let it run continuously for
twenty-four hours. Verify that the pressure in the pump is not too high. Bear
in mind, most gauges are not always accurate. The best indication of a filter
needing to be cleaned is to make sure the suction in the skimmer is as strong as it was
when it was backwashed the last time. If it is weaker, this indicates the filter
needs to be cleaned. If you are not sure of the suction, backwash anyway to confirm
you are getting 100% filtration.