The Chem Log
I got an FAC reading of 1.8
Notify shift MOD, raise ORP by 5 and retest in 30 minutes. Raise again is FAC is still out of range
What does the salt in the salt tank do for pool chemistry?
Our pool uses a chemical reaction involving salt to create the chlorine that goes into our pool
It's time to backwash
T/F: You can swim immediately after adding sodium bicarbonate to the pool
True! Bicarb is completely swim safe.
How do you know it's time to add salt to the salt tank?
You can see liquid gathering in the tank or chlorine drops rapidly despite raising ORP
I got a pH reading of 7.2
Notify shift MOD and add the appropriate amount of pH up (soda ash).
What does sodium bicarbonate do when added to the pool?
Raises alkalinity
Uh-oh, the seresco unit has a yellow alert!
Notify shift MOD but usually we can ignore these
T/F: Adding pool chemicals should always be done by the MOD
False! You should notify the MOD when you are getting ready to add chems to the pool. However, you should feel empowered to add them yourself
What type of oral pool contaminant does NOT require that we clear the pool?
Spit up
I got an alkalinity reading of 80
Notify shift MOD, add appropriate quantity of sodium bicarbonate per chem add sheet
What does soda ash do when added to the pool?
Raises pH
Uh-oh, there is water around the sand filters!
Notify shift MOD, make sure that the bleed valves are closed tightly. If water dries throughout the shift, all is well
T/F: Calcium hardness should be tested once per day
False! Calcium hardness should be tested once per week and retested when calcium chloride is added to the pool
62,000 gal
When mixing chemicals to add to the pool, do we add water to chemicals or chemicals to water?
What does calcium chloride do when added to the pool
Increases calcium hardness
Uh-oh the CAT2000 has a no flow error!
Make sure that valves 1 and 2 are open. If error persists, notify shift MOD and assist with repriming
T/F: When adding chemicals to the pool manually, valves 1 and 2 should be closed
True!
When would we use the backup pump (or go on backup chlorine)?
Any time that chlorine must be raised quickly
I got an FAC reading of 0.6
Notify shift MOD, put the system on backup chlorine for 30 minutes and retest. Stay on backup chlorine until FAC reaches range. Reconnect the system to the CAT2000 and check chems every 30 mins.
If this happens during lessons, clear the pool and close for at least 30 mins to allow FAC to rise within range.
What does sodium thiosulfate do when added to the pool?
Neutralizes chlorine
Uh-oh, you walk into the pump room to do your morning checklist and it is SILENT!
Notify shift MOD and assist with re-priming the pump
T/F: If there is a diarrhea incident in the pool, we should only need to cancel lessons for 30-60 minutes
False! Diarrhea requires full breakpoint chlorination (shock) and at least a 12 hour closure
How many Bubbles bath toys are hidden around the pump room?
7