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Thread: add bleach while SW system comes online?

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    add bleach while SW system comes online?

    Howdie, from Mobile, AL. I'm hoping y'all can give me a bit of guidance. We've recently built a new pool. My husband and I have no prior pool experience, so I'm diving in quick as I am determined to learn as much about this as I can. I've read the pool school guides and they are very helpful. Pool school with the builder is scheduled for this evening. We are going to put salt in the pool tonight as well. Should we add some bleach to bump up the chlorine while the SW system is coming online? The reason for no chlorine until now is becuase the builder said we could not put any chemicals in the pool for 10 days due to the plaster being new. Now the 10 days has passed. And the pool water is being turned over to us as of this evening.

    I'm planning to order one of the recommended test kits as soon as payday gets here, but here are numbers as of yesterday from Leslie's:

    FC: 0
    pH: 7.8 (builder recommends 7.2 - 7.6 or my warranty will be voided)
    TA: 90
    CH: 140 (builder recommends 250 for gunite pools)
    CYA: 50
    Phosphates: 100 (not sure of the significance of this)

    I think I need to add a bit of muriatic acid to bump the pH down a bit, add calcium increaser to bump the CH up to 250, but should I do anything the the TA or CYA?

    Thanks for any help.

    Pool info:
    12,600 gallon free form gunite pool with spill over spa (it would be more but the tanning ledge is huge)
    1.5 hp two speed Super II pump
    Goldline P4 controller with salt system
    450 swim clear filter
    250 btu Hayward heater
    3/4 hp booster pump
    Hayward Viio cleaner
    aqual blue quartz finish
    pump run time: 4 hours on high in the morning with 2 hours of cleaner time here too, and 6 hours on low in the afternoon
    13,000 gallon freeform gunite pool with aqua blue quartz finish completed 8/23/09, 1.5 hp two speed Super II pump, 450 cartridge filter, 250 btu heater, 6' spillover spa, 3/4 hp booster pump for Hayward Viio Cleaner, Goldline P4 controller with salt system 20k cell

  2. Back To Top    #2

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    Re: add bleach while SW system comes online?

    yes definitely
    you should add enough to bring it to the normal level and then let SWG support it
    SWG is not designed to bring up from 0

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    frustratedpoolmom's Avatar
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    Re: add bleach while SW system comes online?

    I don't think you are supposed to make any significant adjustments to the CH level in the first few weeks - discuss this with the PB.

    Yes, lower the PH to 7.2 with Muratic Acid. The PH will rise frequently while the new plaster cures, it will do this for the first year. It's essential to have your own kit because of this....hope payday comes soon.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: add bleach while SW system comes online?

    Your CYA is on the low end of the scale for a SWG pool. You might want to add 6-8oz and see where you are in a week.

    Your ideal level will depend on how much direct sunlight your pool gets. poolcalculator.com recommends 70-80ppm CYA but I run 55-60ppm and my FC stays pretty constant throughout the day with 8 hours of direct sunlight.
    ~18000 gal in-ground pool
    Zodiac C170S SWG
    Hayward top mount sand filter
    Hayward Pool Vac Ultra

  5. Back To Top    #5

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    Re: add bleach while SW system comes online?

    Quote Originally Posted by frustratedpoolmom
    I don't think you are supposed to make any significant adjustments to the CH level in the first few weeks - discuss this with the PB.

    Yes, lower the PH to 7.2 with Muratic Acid. The PH will rise frequently while the new plaster cures, it will do this for the first year. It's essential to have your own kit because of this....hope payday comes soon.

    Thanks. They did add about 3/4 gallon of acid last night. And told us to plan on about a gallon of acid a week for the next several months. I intend to get the test kit asap. Is the big one from Leslie's okay? My builder is giving me a test kit, but I dont think it will do what I need for it to do.
    13,000 gallon freeform gunite pool with aqua blue quartz finish completed 8/23/09, 1.5 hp two speed Super II pump, 450 cartridge filter, 250 btu heater, 6' spillover spa, 3/4 hp booster pump for Hayward Viio Cleaner, Goldline P4 controller with salt system 20k cell

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    Re: add bleach while SW system comes online?

    Quote Originally Posted by DaveInPhx
    Your CYA is on the low end of the scale for a SWG pool. You might want to add 6-8oz and see where you are in a week.

    Your ideal level will depend on how much direct sunlight your pool gets. poolcalculator.com recommends 70-80ppm CYA but I run 55-60ppm and my FC stays pretty constant throughout the day with 8 hours of direct sunlight.

    I think I need to raise it up a bit too because it will get full sun all day long.
    13,000 gallon freeform gunite pool with aqua blue quartz finish completed 8/23/09, 1.5 hp two speed Super II pump, 450 cartridge filter, 250 btu heater, 6' spillover spa, 3/4 hp booster pump for Hayward Viio Cleaner, Goldline P4 controller with salt system 20k cell

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    Re: add bleach while SW system comes online?

    Quote Originally Posted by tmtklt
    Thanks. They did add about 3/4 gallon of acid last night. And told us to plan on about a gallon of acid a week for the next several months. I intend to get the test kit asap. Is the big one from Leslie's okay? My builder is giving me a test kit, but I dont think it will do what I need for it to do.
    1 gal of acid a week sounds about right. I had mine re-plastered in May and this is about what I'm adding. I try to spread the gallon over two or three adds a week to keep the Ph and TA from getting too high.

    I have the Leslie's DPD Deluxe test kit (~$35) and managed to keep the pool looking great. There are two problems with this test kit, however. First and by far the most irritating is that I ran out of the Ph indicator solution and Leslie's doesn't carry the refills (it's not the normal R-0004 Ph indicator in this kit). Another problem with this kit is the highest chlorine level it will read is 5ppm which is just on the low end of the recommended FC level for SWG pools using the recommended level of CYA.

    There's some school of thought that higher CYA translates to more stable Ph in the recommended range because you're cutting the overall the SWG output back, but then you need to run higher FC level to compensate for the added CYA. I'm going to be giving this a shot (as well as adding Borax) in the next couple of weeks so I need a kit that can read >5ppm FC. Also, trying to read anything less than 2ppm of CC on this kit is futile. The difference in the shades is just not enough to definitively determine what the levels are. In the end, this test is geared more toward non-SWG pools but even then, it doesn't adequately cover all the bases.

    I got the TF100 and I can say I wish I had got this thing before bothering with any other kit. There is just no substitute for accurately being able to determine high levels of chlorine to within to 0.5 ppm and this kit does that for you. The only thing it lacks is a test for borate (or is it borite) and I'm surprised, actually, that this test isn't even offered as a stand-alone item from the TF guys.

    Anyway, you're in a good position with having a new pool and starting with fresh water. Get yourself a good test kit and will have everything dialed in in no time.
    ~18000 gal in-ground pool
    Zodiac C170S SWG
    Hayward top mount sand filter
    Hayward Pool Vac Ultra

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    frustratedpoolmom's Avatar
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    Re: add bleach while SW system comes online?

    You won't regret the TF100. If you get the Leslie's kit, make sure it's this one and NOT the Complete DPD kit which looks very similar. They rarely stock the correct kit in their stores, which means ordering online, so if you are going to order online, just get the TF100 from tftestkits.net. There is an article in Pool School that explains why the TF100 is a better deal for the money.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: add bleach while SW system comes online?

    Quote Originally Posted by DaveInPhx
    I have the Leslie's DPD Deluxe test kit (~$35) and managed to keep the pool looking great. There are two problems with this test kit, however. First and by far the most irritating is that I ran out of the Ph indicator solution and Leslie's doesn't carry the refills (it's not the normal R-0004 Ph indicator in this kit). Another problem with this kit is the highest chlorine level it will read is 5ppm which is just on the low end of the recommended FC level for SWG pools using the recommended level of CYA.
    I think I have an old DPD Deluxe, the pH indicator is R-0014 (for the small tube) not the R-0004 (for the big tube). My local Leslie's had it. R-0014 is the same stuff used in the K-1000 that comes in the TF100.

    The DPD test (red drops, R-0001/2/3) can bleach out at high FC levels and read incorrectly low. You can dilute your sample to extend the range, but the result gets even more approximate.
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Re: add bleach while SW system comes online?

    The standard recommendation is to not add salt or turn on the SWG until the plaster has cured for 30 days.
    11000 Gals, Intelliflo, Sta-Rite Cartridge, Polaris 360

    Pool I built in my old house: my-new-pool-build-t4534.html

  11. Back To Top    #11

    Re: add bleach while SW system comes online?

    Quote Originally Posted by PaulR
    Quote Originally Posted by DaveInPhx
    I have the Leslie's DPD Deluxe test kit (~$35) and managed to keep the pool looking great. There are two problems with this test kit, however. First and by far the most irritating is that I ran out of the Ph indicator solution and Leslie's doesn't carry the refills (it's not the normal R-0004 Ph indicator in this kit). Another problem with this kit is the highest chlorine level it will read is 5ppm which is just on the low end of the recommended FC level for SWG pools using the recommended level of CYA.
    I think I have an old DPD Deluxe, the pH indicator is R-0014 (for the small tube) not the R-0004 (for the big tube). My local Leslie's had it. R-0014 is the same stuff used in the K-1000 that comes in the TF100.

    The DPD test (red drops, R-0001/2/3) can bleach out at high FC levels and read incorrectly low. You can dilute your sample to extend the range, but the result gets even more approximate.
    --paulr
    I checked 2 different Leslie's and neither had the R-0014. They didn't even have a place for them on the shelf so it wasn't like they happened to be out. I looked in the other test kits they had there and the only one I saw that had the R-0014 was the DPD Deluxe so I figured they didn't carry the R0014 it because there wasn't enough of a demand for refills. Weird. I guess I should have called around some.

    BTW, I just looked and tftestkits.net *does* have the LaMotte borate test strips. For some reason I was under the impression they didn't have them when I looked a few months ago, but anyway, I wanted to correct my previous statement where I said they didn't have them. Sorry....
    ~18000 gal in-ground pool
    Zodiac C170S SWG
    Hayward top mount sand filter
    Hayward Pool Vac Ultra

  12. Back To Top    #12

    Re: add bleach while SW system comes online?

    Quote Originally Posted by cobra46
    The standard recommendation is to not add salt or turn on the SWG until the plaster has cured for 30 days.
    Ouch, our lunkhead waited 2 weeks and then dumped in 2x as much as salt as he should have.....
    10,000 gallon in-ground pool, Jandy AquaPure 1400 SWG, Jandy Purelink Water Purification System, AquaLink RS Pool Digital Assistant, Jandy Stealth Series Pumps, Polaris 380, 3/4 hp booster pump, DE Filter, Lucayan Blue River Rok aggregate innerds

  13. Back To Top    #13

    Re: add bleach while SW system comes online?

    Quote Originally Posted by SeeGars
    Quote Originally Posted by cobra46
    The standard recommendation is to not add salt or turn on the SWG until the plaster has cured for 30 days.
    Ouch, our lunkhead waited 2 weeks and then dumped in 2x as much as salt as he should have.....
    The guy that did our plaster said the issue with adding salt too early is with staining and brushing every 30 min or so until the salt dissolved would help prevent the stains.

    I added salt on day 2 after a replaster and didn't get any stains, but as always, YMMV
    ~18000 gal in-ground pool
    Zodiac C170S SWG
    Hayward top mount sand filter
    Hayward Pool Vac Ultra

  14. Back To Top    #14

    Re: add bleach while SW system comes online?

    Thanks Dave, I will now know to look for stains.
    10,000 gallon in-ground pool, Jandy AquaPure 1400 SWG, Jandy Purelink Water Purification System, AquaLink RS Pool Digital Assistant, Jandy Stealth Series Pumps, Polaris 380, 3/4 hp booster pump, DE Filter, Lucayan Blue River Rok aggregate innerds

  15. Back To Top    #15

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    Re: add bleach while SW system comes online?

    There is another ulterior motive. During the first few weeks of curing, if there are staining, mottleing, or discoloration issues, they want to make sure that it's as a result of the plaster and that other "additives", such as salt, had not contributed to the problem.

    I've started many pools with the same results as Dave has described...no problems if you get the salt added and dissolved quickly.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

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