Use and Care Manual

9
Filtration and Circulation
Maintaining proper circulation and fi ltration is necessary to ensure
effi cient distribution of products and fi ltration of debris.
Filter Maintenance
Sand Filters
• Backwash the fi lter when the pressure increases 8 - 10 psi over
initial reading.
Diatomaceous Earth Filters
• Follow the manufacturer’s directions for backwashing and re-coat
the fi lter with HTH
®
D.E. Filter Aid.
Cartridge Filter
• Clean the fi lter per the manufacturer’s directions.
• Use HTH
®
Filter Cleaner with natural protein additives to clean
all three fi lter types at least twice a season.
1) Adjust your alkalinity levels fi rst before adjusting your pH levels. Once you have
reached an ideal range for alkalinity then test your pH levels again and add the
recommended amount of HTH
®
pH Plus or HTH
®
pH Minus to your pool water.
Pool Care Fundamentals
Parameter What is it?
When
to Test
Total Alkalinity
(TA)
1
The water’s ability to keep the pH at
a proper level
Weekly
pH A measure of the water’s acidity Daily
Free Available
Chlorine (FAC)
The amount of active chlorine in the water Daily
Calcium
Hardness (CH)
The amount of dissolved calcium
in the water
Daily
Cyanuric Acid/
Stabilizer (CYA)
3
Measures the level of protection for FAC
from ultraviolet rays of the sun
(these rays decrease chlorine in pool water)
Twice per
Season
Water Circulation
• Make sure all equipment is working properly and in place.
• Run the pump and fi lter at least 10-12 hours per day-sometimes
longer during peak swimming.
• Chemically clean the fi lter at least twice per season- Use HTH
®
Filter Cleaner.
• Position return inlets downward at 45° and slightly to one side.
• Clean skimmer baskets and hair and lint strainer (on the pump).
IDEAL LEVELS AND HTH
®
PRODUCTS USED FOR BALANCED POOL CARE
Balanced water means clear water.
This chart outlines the ideal levels for balanced pool care.
Ideal Range Product Used to Adjust Levels
60-120 ppm HTH
®
Alkalinity Plus
7.2-7.6 ppm
2
HTH
®
pH Plus or HTH
®
pH Minus
1-4 ppm when
HTH
®
Sanitizers or HTH
®
Shock products
200-500 ppm HTH
®
Calcium Plus
Ideal Range 20-50 ppm
Do not exceed 100 ppm
HTH
®
Stablilizer & Conditioner
2) Adjust pH in the range of 7.2-7.6 when using HTH
®
Chlorinating Granules or HTH
®
3-in-1 Chlorinating Skimmer Tablets. Adjust pH in the range of 7.2-7.8 when using
HTH
®
1” or 3” Chlorinating Tablets, HTH
®
Super 3”Chlorinating Tablets, HTH
®
Extended Skimmer Sticks or HTH
®
Ultra 3” Chlorinating Tablets.
3) Allow at least 48 hours for the stabilizer to dissolve before backwashing
or cleaning the fi lter.
1-866-HTH-POOL (1-866-484-7665) – hthpools.com