Could use some help

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Davwil said:
Since I have never been able to get the necessary salt generators, the pool isn't a salt pool. I've been using chlorine from day one. I can't wait to switch.
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It will be a salt pool, though, and dry acid will leave behind sulfates that can affect your generators down the road.
 
Right now the game plan is to gradually start adding the sodium bisulfate I have to try an lower the TA. I realize that liquid chlorine is a better option, but not only is it harder to deal with, the price has skyrocketed. I don't want to purchase/install an automated liquid chlorine system when I intend to use salt. And, the amount I'd have to continually source for this size pool is huge. The price of all chlorine has skyrocketed, but dealing with tablets at this point is easier. Again, I'm switching to salt as soon as I get the generators...if I get them.
I do appreciate all the help from everyone on this forum. I'll see if I can get some recent, finished pictures posted. I travel quite a bit and not always home.
Thanks again.
 
Davwil said:
game plan is to gradually start adding the sodium bisulfate I have to try an lower the TA
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Just dont!!! Please trust us, it will harm your SWG. Sodium Bisulfate is not for lowering TA, its for lowering PH. Dont worry too much about TA just jet, it will come down with the Muriatic acid additions on its own. You should be looking into an acid Stenner pump system. I have a fill TA of 220 and will always use acid. So its the best investment you can do.
 
From the IC60 manual.


Dry acid (sodium bisulfate) is generally more expensive than muriatic acid.

Davwil said:
I realize that liquid chlorine is a better option
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Liquid chlorine is necessary now until the salt water generators are installed. Liquid chlorine is also not related to the pH and TA reduction needed.

Screenshot_20220418-111547.png
 

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ajw22 said:
You can do the COMSYS6 that is used in Pentairs commercial systems.

SWG options for a large pool....

SWG Multiple Cells - Further Reading

www.troublefreepool.com www.troublefreepool.com
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As I understand it one of those systems is required for a 30,000 pool. I'm plumbed and setup to use two IC 60's, which would handle 120,000 gallons. And, the two IC 60's are paid for, just backordered. If the price goes up....which I have no doubt it will, like everything else, I should be ok.
 
Davwil said:
but dealing with tablets at this point is easier.
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You MUST keep a close watch on your stabilizer (CYA Cyanuric Acid) levels while using tabs. The LAST thing you want to have to do is to drain and refill 90kgals because your stabilizer level is too high.
 
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MITBeta said:
From the IC60 manual.


Dry acid (sodium bisulfate) is generally more expensive than muriatic acid.


Liquid chlorine is necessary now until the salt water generators are installed. Liquid chlorine is also not related to the pH and TA reduction needed.

View attachment 402293
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Thank you!! Since I don’t have the units, I didn't have any manuals. I'll download them.
I won't use the dry acid. I'll switch to muriatic acid.
I'll also start looking into the liquid chlorine. Any good source recommendations?? Supplies seem to be limited around here. And now I’ll also look into getting a Stenner acid pump system, as well as, check the pH and TA of incoming fill water.
Im glad I checked on here before I screwed something up. Thank you.
 
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I've been working on getting everything together and ready so I can switch over to SWG.

1) I installed the two Circupool RJ 60 plus units. One on each of the two filter VS Pentair filter pumps. I wired them to the load side of each of pumps on the IntelliCenter, so they wouldn't run if the pumps weren't running. I also plumbed in the Circupool inline switches. The SWG should be ready to go now.

2) I SLAMed the pool because we had some heavy rain (thank God) and I was starting to see algae. After three days, based on the SLAM procedure things should be ok now. While SLAMing I started to add salt over the last 3 days, since I read here that was ok to do.

Here's where things were this morning.
Pool water temp 77 to 80 each day.

pH 8.4 [per Pool Calculator I added 4 gallons of MA (15.7%)]
FC 14
CC 0
CH 240
TA 200
CYA 40
CSI 0.89 (Pool Calculator says that's too high, but hopefully my adjustments will bring that into line.)

My salt level was at 2900, so again from the Pool Calculator I added another 11-#40 bags of salt to reach 3500 ppm.

At this point I intend to wait 24 hours and then turn on the SWGs to 50% (?) and then start to monitor chlorine levels. I was also going to add 8 pounds of stabilizer to start trying to raise the CYA it to 60 or 70. Pool Calculator calls for 15 pounds to get to 60, so I was going to add it in separate doses a few days apart since it takes so long to dissolve (using the sock as suggested on here).

Am I headed in the right direction or are there things I need to reconsider/change?

My fill water coming from a well in limestone country tests at 240 TA, so I guess I'll always need to add MA. I don't have any idea how much that will be at this point, but since start up in the last few months, I've already added at least 30 gallons. So, I would like to figure out a way to get this to dose automatically. Flying Tivo recommended a Stenner setup, so I've been reading the forum and trying to figure out the details. I would like it automated as much as possible. From my reading I see Pentair sells the IntellipH system, but since my SWG cells aren't compatible with the Pentair system, I'm not sure that would work. I think with the size of the pool (90,000 gal) I would be best with a 30 gallon tank like Stenner makes. Is there a simple (or somewhat simple) method to hook that up? Stenner pump and tank? Or does anyone have a better suggestion?

Also, I want to thank everyone for all the help, guidance and sharing everyone gives on this forum. I've had three pools in the past and swore I would never have another one. They were a constant PITA and trying to get a pool service to handle things was always a complete nightmare....constant algae, shocking, chemicals, etc., etc. Only after I found TFP did I think having a pool shouldn't have to be such a never-ending pain. Thank you for all your help.
 
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Looks like you're headed in the right direction. I would work on trying to lower TA a little more aggressively because it's creating a high CSI. Lower pH and TA with MA, then aerate to raise pH again. Then repeat.

We do need to see pictures of your pool, though.
 
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Thanks for the reply. I’m aware of the TA and pH issues. If you look at the first post in this thread the TA was 360 and pH off the charts. I’m working on that with MA and running waterfalls etc. It seems to take a little time…that’s not been an overnight process at least in my case. 90,000 is a lot to turn around with fill water TA at 240 to 260.
Now I’m trying to figure out how to rig up a simi-automated acid system. Again thanks for the input.
 

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You have not filled in your signature with your pool specks and equipment, so i dont recall if you have automation. If you do.

Davwil said:
Now I’m trying to figure out how to rig up a simi-automated acid system. Again thanks for the input.
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I would suggest the following:

1. Get a Stenner pump E20FXCA2S(this is the most GPD).
2. Look into where you are going to buy MA, and if they sell large containers(5gal) You can use them with out having to buy.
If they have 12% it would be better as you wont have to dilute and better on the tubing long run.
3. If you have automation, you can connect to an AUX relay(ET) and run a schedule to dose daily.

This is as easy as it can get.

Good Luck
 
Awesome looking pool! While you are waiting for your Stenner install, you might consider using 31.5% MA instead of the 15.7%. It's sold at HD and most pool stores. Half as many jugs to lug, and better value from a $ per hydrogen ion perspective.

@Flying Tivo Do Stenners require MA dilution? Don't remember that when I was looking into them, but I could be mistaken.
 

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