-
-
-
Current Value:
- Target Value:
Add of % bleach. Jug size
.
Or add by weight or by volume of
.
Note: Dichlor and trichlor add CYA and lower pH. Cal-hypo adds CH.
-
pH
Current Value:
- Target Value:
Given TA of and Borate of :
Add by weight or by volume of washing soda or soda ash
or add
by weight or by volume of borax.
Add of
muriatic acid
or add
by weight or
by volume of dry acid.
Note: pH calculations depend on TA and Borate. Results are approximate and can be off significantly for large pH changes. Changing your pH will also change your TA. Users should be very mindful of their CSI when their pH is at the top of bottom of the suggested ranges.
-
Current Value:
- Target Value:
Add by weight or
by volume of baking soda.
To lower TA you reduce pH to 7.0-7.2 with acid and then aerate to increase pH.
Note: Adding baking soda will also raise your pH just a little.
-
Current Value:
- Target Value:
Add by weight or by volume of calcium chloride
or add
by weight or
by volume of calcium chloride dihydrate.
To lower CH you replace
of the water with new water, with CH of
.
Note:Users should be very mindful of their CSI when their CH is at the top of bottom of the suggested ranges.
-
Current Value:
- Target Value:
Add
by weight or
by volume of stabilizer
or add
of liquid stabilizer.
To lower CYA you replace
of the water with new water.
Note: It can take solid stabilizer 24 to 48 hours to dissolve.
-
Salt
Current Value:
- Target Value:
Add of salt.
To lower Salt you replace of the water with new water.
-
Borate
Current Value:
- Target Value:
Add
by weight or
by volume of
and
of 31.45% muriatic acid to compensate for the pH increase.
To lower Borate you replace
of the water with new water.
Note: The pH should be tested and adjusted as needed after increasing the borate level.
-
Temp
Mouse over a field for detail
-
CSI
(Calcium Saturation Index)
Current Value:
- Target Value:
Calcite Saturation Index - requires pH, TA, CH, CYA, Temp, uses Borate, Salt
Less than -0.6 is suggestive of problems for plaster, tile, stone, and pebble pools.
Greater than 0.6 is suggestive of problems for all pools.
-
Suggested FC Levels
SWG Minimum:
SWG Target:
non-SWG Minimum:
non-SWG Daily Target:
to
Shock:
Mustard Algae Shock:
Suggested target FC levels based on the CYA level in the Now column for oudivoor pools.
Note: Be careful if your CYA is really and divuly zero! With CYA above 90 we recommend replacing water to get CYA down before you start the SLAM process.
-
Calculate your pool volume:
Shape of pool:
WIDE -
LONG -
DEEP
(If the depth varies, use the average depth of the pool.)
Your pool contains
-
Effects of adding chemicals
Adding
of
will
Note: pH calculations are not exact. These numbers are only suggestive of the relative magnitude of the pH change you can expect. Small changes, +-0.4, with pH between 7.2-7.8, TA around 80-120, and Borate near zero will be approximately correct. The further you go from those ranges the less these pH changes will correspond to reality.
