Okay. I thought he was making something up here. Good to know that there is such a phenomenon and that it doesn't pertain to my situation.
Appreciate the explanation. Thank you!
Any concerns about SLAM'ing my pool?
- Thread starter mgianzero
- Start date
Appreciate the explanation. Thank you!
They don't understand CYA. At. All.
Mine told me I didn't need to add any right away to my fresh fill with 0, because even when you lose some, there is still some left to help.
This is true starting with CYA in the water. Say, a 30 degrading/diluting down to 20. But 0? And he knew it was 0.
Mine told me I didn't need to add any right away to my fresh fill with 0, because even when you lose some, there is still some left to help.
This is true starting with CYA in the water. Say, a 30 degrading/diluting down to 20. But 0? And he knew it was 0.
Okay, so here's my follow-up from my SLAM process:
Even thought the pool looked really, really crystal clear after day 3 of the SLAM, It took me 6 1/2 days to get to meet all the criteria (no visible signs of algae, OCLT less than 1ppm and no CC). The OCLT was the most difficult to pass, which I imagine is expected.
Here are my follow-up questions:
1) I can resume my usual filter circulating schedule at this point, correct? That is, there is no longer need to run 24/7. But I take it I should now turn my SWG back on, even though FC is high.
2) Is my next step to raise my CYA to around 80? (Currently it is 50).
3) I take it I only start measuring and adjusting the pH when the FC drops below 10. (I've been keeping it above 20 for the entire time of SLAM.)
4) I wasn't sure what the consensus was about my Total Alkalinity. Currently has been around 60. I was told this is decent. But should I keep it at this level or raise it a bit?
Even thought the pool looked really, really crystal clear after day 3 of the SLAM, It took me 6 1/2 days to get to meet all the criteria (no visible signs of algae, OCLT less than 1ppm and no CC). The OCLT was the most difficult to pass, which I imagine is expected.
Here are my follow-up questions:
1) I can resume my usual filter circulating schedule at this point, correct? That is, there is no longer need to run 24/7. But I take it I should now turn my SWG back on, even though FC is high.
2) Is my next step to raise my CYA to around 80? (Currently it is 50).
3) I take it I only start measuring and adjusting the pH when the FC drops below 10. (I've been keeping it above 20 for the entire time of SLAM.)
4) I wasn't sure what the consensus was about my Total Alkalinity. Currently has been around 60. I was told this is decent. But should I keep it at this level or raise it a bit?
- Jun 1, 2018
- 16,050
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
1) yes, you have a variable speed pump so you can run it on low (enough rpms to engage your swg) most all the time for substantial energy savings & still allow for constant skimming & fc production, this way you can just adjust the percentage of your swg to the fc result you desire.
1a) turn the swg back on when fc is near the level you wish to maintain FC/CYA Levels adjust it as needed to maintain target fc or a scootch above.
2) since the weather is getting cooler & uv is lessening around 60-70 cya should be sufficient, 80 is usually more necessary in higher uv times of the year.
3) correct
4) your TA is great
leave it alone 
1a) turn the swg back on when fc is near the level you wish to maintain FC/CYA Levels adjust it as needed to maintain target fc or a scootch above.
2) since the weather is getting cooler & uv is lessening around 60-70 cya should be sufficient, 80 is usually more necessary in higher uv times of the year.
3) correct
4) your TA is great
leave it alone 1) yes, you have a variable speed pump so you can run it on low (enough rpms to engage your swg) most all the time for substantial energy savings & still allow for constant skimming & fc production, this way you can just adjust the percentage of your swg to the fc result you desire.
1a) turn the swg back on when fc is near the level you wish to maintain FC/CYA Levels adjust it as needed to maintain target fc or a scootch above.
2) since the weather is getting cooler & uv is lessening around 60-70 cya should be sufficient, 80 is usually more necessary in higher uv times of the year.
3) correct
4) your TA is great
Thanks so much!
So my understanding (and that of many of the experts on TFP) was that my pool was still developing algae for two reasons:
1 - I was tittering on low CYA since I had it around 50, which should be higher, especially in the higher temperatures of summertime. Now the pool water temp has dropped to around 72 degrees, it is not as critical.
2- There are many areas of my pool system that has low circulation and possibly not getting the higher levels of FC and CYA it needs like my water features such as my fountains which sit in a 6" raised tub that spills into the pool.
I've been circulating my pool filter pump at 50 GPM for 12 hours daily in the summer. Is this a good amount? I usually drop my pool circulation pump time to around 8 hours daily (a turnover of just over once / day) when the water temp drops into the 60's. Does this sound about right?
Also, now that the weather is getting cooler, what would be the recommended schedule to run both my water features (3 fountains, 2 shear descents, 5 sconces) and my secondary spa jets (runs 6 jets on separate pump)? I've been running my water features for about 5 minutes twice a day. I am also running my secondary spa pump for 5 minutes daily too. Does this sound like enough time?
- Jun 1, 2018
- 16,050
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
The pump needs to run high enough & long enough to effectively skim/ remove debris to your liking & allow your swg to produce adequate fc. That is all that matters.
turnovers really don’t count that much.
Here’s more guidance on that
www.troublefreepool.com
If I had to guess, the algae problem is stemming from lack of circulation in the fountain features you mentioned which is allowing fc to drop at times in those areas. You may want to up that to 30 minutes or so. Testing a sample from those areas at different times to see what is happening can guide your schedule a little better.
turnovers really don’t count that much.
Here’s more guidance on that
Determine Pump Run Time
To figure out how many hours you need to run your pump, you need to know how fast your pump works. You can find this here.
www.troublefreepool.com
If I had to guess, the algae problem is stemming from lack of circulation in the fountain features you mentioned which is allowing fc to drop at times in those areas. You may want to up that to 30 minutes or so. Testing a sample from those areas at different times to see what is happening can guide your schedule a little better.