Black Algae, Wire Brush, New Plaster
- Thread starter edjanowsky
- Start date
Thank you Yak! I truly appreciate your input and everyone else's!
I'm starting to realize that during this busy season I don't have the time to properly babysit the SLAM, and it's clear there's something in there that needs attention.
If I'm abandoning this attempt, I may rather wait a month or two to just drain the darn thing and start over. I can't keep wasting bleach to reproducing algae.
Reading is as follows.
FC 22 (using a 5ml sample)
CYA 40-45 ( I checked yesterday's sample again with sun at more of an angle as opposed to overhead).
FC 22 (using a 5ml sample)
CYA 40-45 ( I checked yesterday's sample again with sun at more of an angle as opposed to overhead).
BattleOfYakima
TFP Guide
Overnight loss in bucket and pool were similar at 3 and 3.5. This suggests the problem indeed lies with contaminants/organics/algae/bacteria/urine in the pool water itself.
Reading is as follows.
FC 17 (using a 5ml sample)
I added a gallon of 12.5% bleach.
FC 17 (using a 5ml sample)
I added a gallon of 12.5% bleach.
Reading is as follows.
FC 15 (using a 5ml sample)
I added a gallon of 12.5% bleach.
FC 15 (using a 5ml sample)
I added a gallon of 12.5% bleach.
Reading is as follows.
FC 15 (using a 5ml sample)
I added a gallon of 12.5% bleach.
FC 15 (using a 5ml sample)
I added a gallon of 12.5% bleach.
TDS is pool store mumbo jumbo. The pool store's default answer to a pool they can't fix with a one-time dump of chems is to drain. Draining your newly plastered pool will ruin it.
You do not need to drain your pool. TDS includes a lot of different things (calcium, salt, CYA etc) and we worry about those things individually. Mixing up PS suggestions and TFP methods do not mix.
If I took a sample of my perfect water to the PS, they would say the same thing, but guess what? I have use a SWG and my salt level contributes to my TDS. Would they tell me to drain my perfect pool, too?
Are you sure that the 12.5% bleach is actually 12.5% bleach? I don't know the ounces of your12.5% jugs, but if it hasn't lost strength, it should be increasing your FC by 8. That is a lot. Would you mind testing your FC 30 minutes after you add your next jug to make sure you are getting that increase of 8?
You do not need to drain your pool. TDS includes a lot of different things (calcium, salt, CYA etc) and we worry about those things individually. Mixing up PS suggestions and TFP methods do not mix.
If I took a sample of my perfect water to the PS, they would say the same thing, but guess what? I have use a SWG and my salt level contributes to my TDS. Would they tell me to drain my perfect pool, too?
Are you sure that the 12.5% bleach is actually 12.5% bleach? I don't know the ounces of your12.5% jugs, but if it hasn't lost strength, it should be increasing your FC by 8. That is a lot. Would you mind testing your FC 30 minutes after you add your next jug to make sure you are getting that increase of 8?
Reading is as follows.
FC 19 (using a 5ml sample)
I added another gallon (128 oz) of 12.5% bleach dated July 13.
bright sun + zero shade
FC 19 (using a 5ml sample)
I added another gallon (128 oz) of 12.5% bleach dated July 13.
bright sun + zero shade
Did you take another FC reading 30 minutes after your last addition of FC? I strongly suspect that your 12.5% chlorine is not increasing your FC as we would expect.
Reading is as follows.
FC 18 (using a 5ml sample)
four bathers
- - - Updated - - -
This is really wearing me out y'all!
FC 18 (using a 5ml sample)
four bathers
- - - Updated - - -
This is really wearing me out y'all!
I bet it is! AND this is with the bigger SWG!!! 
I say keep the SWG at 100% and get through the heavy season. Once the season is done then I say do a deep clean of the sand maybe even go far as taking it out and putting it in a big wheel barrow or something you can really rinse it out good. When you put it back in I would pour some chlorine in with the water and let the sand mix with that good THEN back wash it REAL good to get whatever out.
I say keep the SWG at 100% and get through the heavy season. Once the season is done then I say do a deep clean of the sand maybe even go far as taking it out and putting it in a big wheel barrow or something you can really rinse it out good. When you put it back in I would pour some chlorine in with the water and let the sand mix with that good THEN back wash it REAL good to get whatever out.
Yes it only went up by 4 from FC 19 to FC 23.
It was back down to FC 18 about half an hour ago so I added another gallon of 12.5% bleach just now and set a timer to check it in 30 minutes.
Now it's FC 25.
I don't understand why you are still using the pool store chlorine if it has lost so much if its strength. Effectively it is half strength and equivalent to around 6%.
You can used Walmart generic plain bleach which is 8.25% and is stored in climate control and is occasionally stronger than 8.25%.
You can used Walmart generic plain bleach which is 8.25% and is stored in climate control and is occasionally stronger than 8.25%.