Here we are at the end of my chemical round up. There are a host of chemicals designed to address certain situations and I could never cover them all, but I will touch on a few.
Algaecide – this is pretty obvious. My suggestion, stay away from anything besides poly 60 for maintenance. Use a copper based algaecide for cleaning up a green pool. Only use an algaecide with the numbers less than 60 if you are closing the pool for the winter. They tend to foam badly otherwise.
Clarifier – helps clear up cloudy water. Be sure to dissolve clarifier in a bucket before adding it to the pool. It works by bonding smaller particles in the water together and make them easier to filter out.
Floc – a super clarifier. Floc may be used when water is extremely cloudy. It bonds the particles much like clarifier, but it works with the filter off and then causes the particles to settle to the floor. Afterward it can be vacuumed to waste.
PhosFree – don’t feed algae. Algae eats phosphates so the idea here is to remove the food thereby helping to prevent algae. Don’t be duped into buying this if no phosphates are present. It is an oversold product by some pool stores.
Stain & Scale Preventer – does what it implies. Scale forms if the pH is maintained high. Stains can come from a variety of sources. There are a slew of chemicals designed to prevent or remove stains and scale. You must research the problem first and then choose the appropriate treatment.
These “lesser” chemicals need only be used in special circumstances and my recommendation is to not add them unless necessary.