Poolmaster 22280 5-Way Test Kit - Manual (Page 9)

7
(when pH reading is 7.8 or above)
1. Use sample water from the pH test. Counting each
drop, add Solution #3 (swirling between drops)
until the color matches approximately the 7.4 color
standard. Do not count the drop which lowers the
pH to 7.2 or below.
2. Refer to Acid Demand Table on Page 12 for proper
amount of acid to be added based on the capacity of
your pool or spa.
3. If more than 1 pint of acid per 10,000 gallons is
required, add it in two or more doses. Allow about
1 hour between doses and do not add more than 2
quarts in one day. Test again in 24 hours. Additional
acid may be needed to maintain correct pH.
4. Add acid only when the filter is running and avoid
acid concentrations in any one place. Add slowly
to deep end of pool away from the vicinity of the
surface skimmer and 12 to 18 inches out from the
pool walls. Leave filter on for at least one hour.
5. If the first drop of Solution #3 lowers the pH to 7.2
or below, it is an indication that the total alkalinity is
too low (Test 4). Don’t add acid. Proceed to Test 4 to
determine your TOTAL ALKALINITY.
TEST 3: Acid Demand