Startup SWG chlorinator salt for new pool
- Thread starter FIESTA62
- Start date
- Mar 5, 2020
- 3,221
- Pool Size
- 66000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Astral Viron V35
Minimally at normal FC. That loss is certainly much smaller than the losses to UV you avoid during the day by having the cover on.
But it is one of the factors why even in a perfectly maintained pool you can't define a 0ppm criteria for the OCLT.
- Mar 5, 2020
- 3,221
- Pool Size
- 66000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Astral Viron V35
That sounds much better, nearly there. I suspect that you would already have passed the criteria at FC 16, but no point in speculating. Let it drift down to 16, but maintain 16 for today and run another OCLT.
I'd suggest to put the cover on for a few hours to kill off potential algae on the cover while your FC is still high. Should FC significantly drop with the cover on, then there is algae on the cover.
ok I figured that was the case, i started reading that info on cya, that's way above my pay grade kinda glazed over when reading, I think I see high FC can cause cya loss and warm pool , mine is constant around 29 c heat pump on 4 hours every day, and my FC did hit 40 so CYA got a beating,
anyway I think its ok now but I will retest at FC16
- Nov 12, 2017
- 12,662
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
hi Gurus....big thanks for all the help and advice i think got it from here, appreciate all the time you guys put in here, my plan is to let it ride down to 16, do the OCLT if passes then let it go down to say FC7, then turn on SWG, do CYA test and aim for around 70 - 80 max, do other all tests to get it balanced and work on tweaking SWG to hold around FC7 using FC 5 as minimum
i will check back in and let you all know how its goes.....when i think i got it tuned in.....thanks again
ps of course stepfathers pool work starts next week so yep ill be asking questions on that for sure...
i will check back in and let you all know how its goes.....when i think i got it tuned in.....thanks again
ps of course stepfathers pool work starts next week so yep ill be asking questions on that for sure...
yep pool gear getting fitted next week its starting...
- Mar 5, 2020
- 3,221
- Pool Size
- 66000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Astral Viron V35
hi Gurus....big thanks for all the help and advice i think got it from here, appreciate all the time you guys put in here, my plan is to let it ride down to 16, do the OCLT if passes then let it go down to say FC7, then turn on SWG, do CYA test and aim for around 70 - 80 max, do other all tests to get it balanced and work on tweaking SWG to hold around FC7 using FC 5 as minimum
i will check back in and let you all know how its goes.....when i think i got it tuned in.....thanks again
ps of course stepfathers pool work starts next week so yep ill be asking questions on that for sure...
Sounds like a plan. Keep FC a few ppm higher than normal, maybe do another OCLT about a week after first passing the OClT to be sure that everything is gone.
Days are starting to get shorter, probably no point to get all the way up to CYA 80 anymore, I reckon 60-70 should be fine. Over winter you can allow it to come down, I like to keep CYA above 30 over winter to know where I am (test only reads down to 30) and to make sure my chlorine doesn't become too harsh.
Also, brushing is nearly as important as sufficient chlorine. You have now found the weak spot in your pool now. Take some extra care there.
I realised that brushing once a week is essential in my pool. I only have a suction cleaner that doesn't really brush. Others with robots might get away with less brushing.
My weak spot is the groove where the water tile line starts. Even when I don't find the time for a complete brush in a week, I will at least do a quick brush along that line. It's the 20/80 principle - with 20% of the efforts, I get 80% of the benefits. But the next week I'll make sure to do an extra careful brush and bump up my chlorine a notch in the meantime.
By the way: Was the algae patch at the sunny or the shady side of the pool?
Then you haven't gone too long. One day you will push said unknown limit and it will be unmistaken. Its been 5 years since I gave up my cover and I can still smell that smell. A musty funky stale chlorine. Mine was around a week and a half +/- depending on UV strength and weather. It burns off in less than a minute and is pretty harmless.
pool gets full sun but the last spot to get sun is the green patch area, see pic, the red dot is where it first was just a patch, few days later it started growing see yellow
when you say brushing, is that sides as well? i assume so, i got one of those whale tail brush's for doing the sides, but if i bought a robotic cleaner would i still need to brush or do they take care of that fully ?
Attachments
- Mar 5, 2020
- 3,221
- Pool Size
- 66000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Astral Viron V35
I guess circulation might be a tad worse in that corner, making algae appear there first.
Yes, brushing includes walls. Some robots are doing a good job getting all the way up to the water line. But corners can be tricky, I guess. That corner might always need some manual labour.
Yes, brushing includes walls. Some robots are doing a good job getting all the way up to the water line. But corners can be tricky, I guess. That corner might always need some manual labour.
- Nov 12, 2017
- 12,662
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I got one spot algae prefers, too. Faces west, gets the last sun. I used to see it when I had a pool guy, who never could get the FC right...
- Nov 12, 2017
- 12,662
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
hi, i didn't want to bother guys with my daily updates , i was thinking to sort what i can then get back to u all.....but seeing as u asked ....here's the scoop
Friday 8am did all tests.... Salt 4000.....FC 7.5.......CC 0.5.....TA 120 too high ?.....CH 270 little low i guess.......PH 7.6.....CYA 30/40 i added 1.1 kg stabilizer aiming for CYA 70
Friday 8pm checked FC again FC 7
Saturday 830am FC 7.5
Sunday ( today ) 730 am FC 8
so as u see FC went up from saturday to sunday to FC 8, i assume thats as high as i should be letting it go, i had swg running 5 hours at 100% , 9am to 2pm, but yesterday changed to 8am to 11am , then 2pm to 4pm, still 5 hours just breaking it up, not sure but thinking might be better for the filtration side of things
so will see how FC holds over the next week, and retest CYA in a few days i think i read before CYA takes a few days to fully dissolve and circulate thru water
my SWG only times by the hour, its 5 hours now at 100%. if FC keeps rising i am not sure what i will try, i can go down by 1 hour, but i think dropping from 5 hours to 4 will be to low, or dropping output from 100% to 75% will be too low , so not sure , will wait and see how it holds and what effect the 1.1kg of stabilizer i put in does to it all
i am just testing every morning now before sun on pool.......thats the latest !
ps and no green anywhere looking sharp....
i will see how it goes over the next few days, i could use a external timer to cut it down by 30 minutes, like say 4.5 hours at 100%, but rather not bother with external timers, i guess its going to be trial and error for awhile, 6 hours at 75% or 4 hours at 100%, if that dont work then i guess i might try external timer at 4.5 hours 100%.....
but the end result is i should be able to get it to set and forget shouldn't i ? how often do u all test your FC / PH is it a weekly thing or longer ?
to be honest now
maybe monthly, but i dont mind if my fc creeps up
if it gets too high uv seems to keep it in check
ph has been stable now for years at 7.6, with ta at 50
maybe monthly, but i dont mind if my fc creeps up
if it gets too high uv seems to keep it in check
ph has been stable now for years at 7.6, with ta at 50
wow hope i can get there with FC, i am so over this testing and tweaking, got to get a robotic too that's another pain brushing and vacumming...,
- Nov 12, 2017
- 12,662
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
All looks good. I might goose calcium, others will tell you to leave it alone. Depends on your fill water CH. CH will accumulate and rise, so you don't want to speed that up, especially if your fill CH is high. But if you have low CH fill water, then you might not want to wait for it to collect. Undershoot if you add any, and let it creep up.
Everything else looks good.
Yes, CYA can take a while to show up. Depends on how you added it. If you put it in the skimmer, it'll take up to a week to dissolve out of the filter. If you put it in the pool, it won't take long at all.
I've lost track of the snafu with adjusting the necessary SWG output and runtime. Sounds like you only have 25% increments for output, and 1 hour increments for runtime? Can you program each day differently, so that your runtime is four hours MWF and five hour STTS, or something like that? That would help fine tune the overall FC...
Everything else looks good.
Yes, CYA can take a while to show up. Depends on how you added it. If you put it in the skimmer, it'll take up to a week to dissolve out of the filter. If you put it in the pool, it won't take long at all.
I've lost track of the snafu with adjusting the necessary SWG output and runtime. Sounds like you only have 25% increments for output, and 1 hour increments for runtime? Can you program each day differently, so that your runtime is four hours MWF and five hour STTS, or something like that? That would help fine tune the overall FC...
yep i can program days different, that's a idea i did not think of, but i will see how it goes, and if needed try the 4 hours at 100% or 6 hours 75% , although 6 hours is more pump time than i preferred in regards to wear on power costs, rather run less time , but overall its no big deal
yes my output is 0-25-50-75-100 percent......and runtime timer is hourly, though manual says i can disable internal timer and use external
kids just had a swim at 3pm and for the first time said eyes were stinging, at 8am it was FC 8, swg has been running today, i just tested at 5pm its FC 9, i know i have read its safe to swim up to slam levels, it may be safe, but when FC gets up to 8 or 9 would i expect stinging eyes? FC is getting a bit too high ?
so as its rising i better try a different setting, 4 hours at 100%, but thinking it will drop and keep dropping, although i am not sure what cya level i have yet, i understand now CYA is the key to getting things balanced
my gut feeling is 6 to 7 is the go , above that is getting too high....maybe