Test mid week before dosing, to ascertain dose level.
pH Test:
Fill cylinder with spa water on the pH side.
Squeeze 5 drops of red solution into the water and shake
If the reading is below Ideal then add pH raiser as stated below.
Re test pH the next day and if it hasn’t raised then add and another dose of Ph Raiser.
Check and keep pH in the range of  7.2  and 7.6  If needed increase pH to the minimum point using Enviro Spa pH raiser Powder.  (2 measures cup per 1,000lt)
 
Test Tablets are available here
Fill Cylinder with spa water on CL BR side.
Shake until tablet dissolves.
The sample will slowly turn pink.
Leave the sample to stand 5 seconds and check reading the level should be 5.00
 
If test is very light pink then add a normal dose of Enviro Booster.
If test is clear then add a double dose of Enviro booster. (4 measure cups per 1,000ltrs water)
The colour will need to be a dark pink if wishing to clear cloudy water. (4 measure cups per 1,000ltrs water) Repeat for 2 days and will need to add 2 measure cups pH Raiser per 1,000ltrs water
 
NOTES
Enviro Spa Booster Powder.  Most spas require twice a week dose of BOOSTER powder only.
Check and keep pH in the range of  7.2  and 7.6  If needed increase pH to the minimum point using Enviro Spa pH Raiser Powder.  (2 measures cup per 1,000lt)