This was taken out today. After we had vacuumed it thoroughly yesterday.
Yellowish/Greenish/Brownish Powder on bottom of pool
- Thread starter Cabrera1016
- Start date
So we are back to the SLAM process....as we had to stop for our 4th of July swim party and now we are back to it. Question....we have a 2 speed pump. Is it acceptable to run it on LOW overnight or does it need to be on high 24/7?
- Jun 24, 2021
- 16,441
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Awesome, thanks for that. Pump being on high 24/7 makes my hubby nervous. I know the SLAM process says to maintain the shock level throughout the day - but does it make a huge impact just to test it at sunset every day and get it to shock level once a day? May be a dumb question, but just wanted to ask. We both work, so the multiple times throughout the day during the week makes it a bit difficult to keep up with.
You'll need to check it more often than once per day since it needs to be checked every 2-3 hours. You'll have to do the best you can now and then devote the weekend to it properly. It's like taking care of a newborn baby.
- Jun 24, 2021
- 16,441
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
If you are working, we do what we can. Check it every 2 hours when you are home, even into the night until you go to bed.
Yeah we'll do what we can. The weird thing too is that shouldn't the chlorine be eaten up quickly with algae present? We really don't lose much in a day's time even while the issue persists. It's very strange.
- Jun 24, 2021
- 16,441
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Slam may have killed it all, and you are in the cleanup phase. You don't say what filter you have. Sand filters take the longest to clear the pool.
Watch your pressures on the filter. When it rises 25% over clean pressure, clean or backwash again.
Keep on the SLAM, you don't want it to come back while you are clearing the pool.
How often are you checking and replacing FC?
Watch your pressures on the filter. When it rises 25% over clean pressure, clean or backwash again.
Keep on the SLAM, you don't want it to come back while you are clearing the pool.
How often are you checking and replacing FC?
It's in my signature - we have a SwimPro Voyager Filter - not sand. My husband vacuums daily and cleans filter daily -- every time he vacuums the pool then gets cloudy.
Yes. I just added 9.5 cups of chlorine as our FC went from 20 to 14 overnight this time. This is the 2nd day into the SLAM process after we had stopped a couple weeks ago.
After the SLAM, run hot for a few weeks.
Maybe a FC/CYA of 15%.
So, a CYA of 60 needs the FC to be at least 9 for two weeks.
Maybe a FC/CYA of 15%.
So, a CYA of 60 needs the FC to be at least 9 for two weeks.
Round up to 50.
Minimum should be 15%.
Range should be 15% to 20%.
Target range = 7.5 to 10 ppm FC.
Minimum should be 15%.
Range should be 15% to 20%.
Target range = 7.5 to 10 ppm FC.
When you say 15%, you're referring to what the target daily FC should be then normally after we clear up this algae once and for all?
After the SLAM is complete, keep the FC at a minimum of 15% of the CYA for at least 2 weeks.
Update on pool this morning: FC of 17. Pool is back to being crystal clear - minimal pockets of algae on floor. Will keep up the SLAM throughout day - feeling encouraged !
Hi all, perhaps a final update!? But wanted to share with you our progress.
We've been in a constant SLAM now since last Tuesday. The last few mornings, the FC has been 19 ....and this morning it was 20 so we lost NO chorline overnight.
The pool is crystal clear, and there is only a very very small patch of deposits on the floor. Picture attached.
Is it safe to say that we can now stop running the pump overnight, we can stop the SLAM, and we can now aim to keep the FC at 7.5 daily? Or do we still need to continue due to that very small patch even tho lost 0 chlorine overnight?
We've been in a constant SLAM now since last Tuesday. The last few mornings, the FC has been 19 ....and this morning it was 20 so we lost NO chorline overnight.
The pool is crystal clear, and there is only a very very small patch of deposits on the floor. Picture attached.
Is it safe to say that we can now stop running the pump overnight, we can stop the SLAM, and we can now aim to keep the FC at 7.5 daily? Or do we still need to continue due to that very small patch even tho lost 0 chlorine overnight?
Attachments
If it easily puffs away (try brushing near it but not over it) then its just dirt, dust, dead algae or pollen.
- May 3, 2014
- 62,729
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Read the SLAM Process. It details the three criteria to end the process.
Up to you if you wish to short change that process.
Up to you if you wish to short change that process.