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How do I figure out how much co2 to use?

I would guess the FC higher in the am I typically test when I get home which is 12 hours after the chlorine was Injected and typically is around 1-1.5 ppm FC and used is around .5-1.0 worst case at that time. I have had the same rate of injection for years and have always been chasing ph. No...

FC5-7 really I was always told 1-2ppm

I have been using the BBB method for several years now and always seam to have high PH. Everyone in this form says liquid chlorine doesn't drive up PH but i seams too in my pool. I have a 25,000 gallon plaster swimming pool and i use a Stenner 3GPD pump with a 7.5 gallon tank. I inject my liquid...

For some reason I though that someone in this forum had told me that liquid chlorine dives up PH as well. I have no aeration, water fall etc... but have to add acid weekly for sure

I fill with city water when i need to top off... honestly not sure never measured it. No water falls bubblers etc...

So if liquid Chlorine is not driving up my PH what is?

The main reason i was considering the switch is lugging bottles and saving dollars. My stenner pump system works great. One issue i have been having is high chlorine usage 1 gallon of 12.5% daily. I ordered replacement CYA testing supplies because i was out. To find out that my CYA is almost non...

I currently have a plaster pool approx 25,000 gallons. I have been using the TFP method going on three years with outstanding success. I currently use liquid chlorine injected with a stenner pump. I am considering switching to a SWG looking for a recomnedation on equipment as well as what i need...

All my numbers are in line now with the exception of a little too much FC loss last night. Not sure what you are referring too? Sent from my iPhone using Tapatalk

FC loss was 1.5 and CC was .5 I suspect I will pass SLAM tonight. Oh yeah got my ph down to 7.2 ish Sent from my iPhone using Tapatalk

Yup Texas splash I was thinking the same thing. Sent from my iPhone using Tapatalk

12.5FC 1.5CC 90ALK 300CH 8.2+ PH dark red n off the chart! Pool is clear now though Sent from my iPhone using Tapatalk

Yeah I thought it was odd too.... When I saw cloudy I could barely see the drains in the deep end after 10-15 minutes of adding bleach. Sent from my iPhone using Tapatalk

I went away on vacation a for a few days. When i got back the pool looked perfectly clear, So figured i run the tests to to be safe. MY FC was 0.0 and CC was 1.5. So immediately panicked and dumped 1.5 gallon of bleach (12.5%) in the pool . The pool became extremely cloud within minutes of...

How much granular shock or tabs would bring me upto 50CYa? Sent from my iPhone using Tapatalk

What would you recommend my CYA be? In the beginning of the season i was advised to drain about 10,000 gallons to get my CYA down from the 90+ range, maybe i went to far. Also what is the downside at leaving it where it is at, other than the cost of adding almost 1 gallon of bleach each day?

I did a OCLT as per your recommendation ... Less then 1.0 FC loss And .5 CC I also waited he 12 hours and tested again in the evening. It was an all sun , blue sky. 80+ degree day. My FC loss was 5 and Cc was between .5 and 1.0 Sent from my iPhone using Tapatalk

The pool is in 100% all sun , no shade expect for very early and very late in the day Sent from my iPhone using Tapatalk

I have the pump set to add about 3/4 gallon of 12.5% each day it seems to keep my FC in the 4-8 range. Almost every time I check CC it's 0 to.5 as high as 1.0 to 1.5 after Harvey rain. The next day returns to 0 to .5 I figure 7.5 is a good PH target ???? Pool math told me to add 42 oz of acid...

Fc 6.5 cc .5 Alk 100 Cya 40 PH 8.2 ish Sent from my iPhone using Tapatalk

1st season using the TFP method and its awesome! However i noticed that it appears as if the bleach raises the PH is that typical? Every few days i need to add a little acid.

After 1st SLAM... FC 6.5 CC 1.0 CH 325 Alk 120 PH 8.2+ CYA 40 Adding Muratic acid now to bring PH down...anything else seam out of line?

1st SLAM completed ... Passed last night OCLT. Sent from my iPhone using Tapatalk

I have no idea but mine did for sure ! Sent from my iPhone using Tapatalk

OCLT 2 PPM FC loss CC 0.0 However it was taken about 1/2 our or so after 1st light Sent from my iPhone using Tapatalk

New pressure gauge came this am from Amazon .... Problem solved! [emoji16] Sent from my iPhone using Tapatalk

The only thing I did was cut in a tee for the stenner pump injection. Sent from my iPhone using Tapatalk

It does go to zero when I turn off the pump. I was thinking of trying a new Gauge too. Sent from my iPhone using Tapatalk