Pool is now completed but i have high TA and PH

[Hitide92]

Hi guys,

Our pool is open now and I've received my TF100 test kit. I took my first readings with the kit this morning.

FC-4
PH-8.2
TA-240
CYA-60

Test strips were giving me high PH and TA levels also but I waited to confirm with my test kit. From researching the board it looks like I need to add 80 ounces of muriatic and then aerate with the deck jets. Am I on track or are other steps also recommended?

This board is awesome. My wife is already calling me her pool boy

Thanks Guys!

 

[Richard320]

You have it figured out. Acid will fix both.

But your FC is too low for 60 CYA.

 

[Hitide92]

Thanks Richard. I'll adjust the pump run time or SWG % to get FC closer to the 5-6 range. I'm still trying to dial it in. I may add some bleach right away and then monitor it to see if the swg keeps up.

 

[Rossko]

having just dropped my TA from 200 to 120 I'll warn you to be ready to use a lot of muriatic acid. There is a page in pool school that lines out exactly how to do it - you want to lower your pH to 7-7.2 then aerate and let it come up to 7.6 then hit it with acid again drop drop it back to 7-7.2 and keep doing that - I've been doing acid additions twice/day per the calculator it's about 60 oz each time - so I'm going through 1 gallon/day although I have more water to deal with.

Since he has a SWG does he really need to get the FC to the 5-6 range with a CYA level of 60? My SWG manual recommends a CYA of 50-75 and a FC 1-3 (for maintenance) and I had read that SWG pools can get by with less FC - yes or no?

 

[Richard320]

having just dropped my TA from 200 to 120 I'll warn you to be ready to use a lot of muriatic acid. There is a page in pool school that lines out exactly how to do it - you want to lower your pH to 7-7.2 then aerate and let it come up to 7.6 then hit it with acid again drop drop it back to 7-7.2 and keep doing that - I've been doing acid additions twice/day per the calculator it's about 60 oz each time - so I'm going through 1 gallon/day although I have more water to deal with.

Since he has a SWG does he really need to get the FC to the 5-6 range with a CYA level of 60? My SWG manual recommends a CYA of 50-75 and a FC 1-3 (for maintenance) and I had read that SWG pools can get by with less FC - yes or no?

Those recommendations are probably written by the same guys who make recommendations for pool store test result sheets.

5-6 is a target range for SWG with 60 CYA. When the SWG is off, the level will drop. If he starts the day at 4, there's a good chance it will dip too low. It should never ever go below 3.