Frequently Asked Questions
Is Algae Shield®
compatible with other products?
may be used with chlorine, bromine and most
water balance chemicals. One advantage of the Algae Shield®
system is its compatibility with a variety of surfaces,
filters and chemicals. It is important to realize, however,
that like all chemicals, Algae Shield®
may react with
certain products and create problems in your pool.
Do I need another algicide when using Algae Shield®?
No, Algae Shield®
is an algae prevention system for your
chlorine, bromine or saltwater chlorination system. For algae
prevention, all it takes is one ounce, per 1,000 gallons,
time per month.
Why do I have algae in a chlorine pool?
Chlorine is not a good algicide when used alone. It is
better to prevent algae in the first place. Use Algae
before algae begins. This means less cost and less
chemicals added to your pool. Algae Shield®
is only added to
the pool one time per month and Earth Science Laboratories,
Inc. guarantees you will not have algae.
How do I winterize with Algae Shield®?
Balance the water and shock the pool with a standard
chlorine shock. Clean the pool and backwash the filter. Add
one ounce of Algae Shield®
per 1,000 gallons of pool water. Follow pool and equipment
manufacturer’s freeze recommendations. Unused Algae Shield®
must be stored at a temperature above 32°
Fahrenheit. Cover the pool and shut down the filter.
What are the benefits of using Algae Shield®?
Algae Prevention Means:
Compatibility and tips for Algae Shield®
are listed below:
OK - Acids, pH down products and filter aids.
OK - Chlorine, bromine and saltwater chlorination
systems. A significant advantage of
the Algae Shield®
system is its compatibility with primary
disinfectants such as chlorine.
OK - Vinyl, fiberglass, cured plaster, acrylic and
painted pool surfaces.
OK - Diatomaceous Earth (D.E.) filters, low rate sand
filters, high rate sand filters and cartridge filters.
OK - Ozone. Ozone has a quick kill but has a very
short residual allowing bacteria and algae to re-grow. The
extremely long residual of Algae Shield®
prevents algae from
NOT OK - Metal out products or algicides. Use of
these products is not needed and may cause Algae Shield®
be ineffective in controlling algae.
NOT OK - Algae Shield®
is not compatible with any
polymeric biguanide or hydrogen peroxide product.
TIP - Undiluted Algae Shield®
products must be
protected from freezing. Once the products are added to your
pool, freezing has little effect.
Why do I balance my water?
Proper water balance is an essential element to the
enjoyment and ease of maintenance of your pool. Since water
balance is affected by such things as rain, dirt, leaves and
bather load, testing the water frequently is vital. Some
problems that occur due to unbalanced water are skin and eye
irritation, cloudy or green water, corrosion or scaling of
equipment and ineffective algae and bacteria control. It is
important that the water is BALANCED before starting on
How often do I filter?
Good filtration and circulation is a major factor in pool
care. Most pool manufacturers recommend that you filter at
least 6 to 8 hours a day. Remember, you can never filter too
much. Be certain that your filtering schedule is adequate
for your pool volume.
How do I calculate the volume of water in my pool?
For square or rectangular pools: Multiply the length in feet
by the width in feet by the average depth in feet by 7.5 to
find the number of gallons of water in your pool.
pools: Multiply the diameter of the pool in feet by itself,
then multiply by the average depth in feet. Multiply that
result by 5.9.
For oval pools: Multiply the width of the
pool in feet at the widest point by the length of the pool
in feet at the longest point, then multiply by the average
depth in feet. Multiply that result by 5.9.