Good morning!
Pool:
13,500 Fiberglass
Chlorine pool with Hayward Chlorine Generator (more on this later)
Specs from pool store test:
FC: 6.5
TC: 6.5
CYA: 84 (more on this later)
PH: 7.7
TA: 106
CH: 193
Phosphate: 0
TDS: 1,000
-We were dealing with what I thought was Mustard Algae early in the season, we tried multiple rounds of super shock and it continued to return.
- We then, before coming here, added Yellow-out, which removed the Algae but flipped the pool to Bromine...so we did a total water swap 2 weeks ago without draining, using the method described here. The water was the best it had ever been.
-We are now seeing a dark green, easy to brush algae build-up on the bottom of the splash pool and the main pool. We have tried multiple rounds of shock, as well as rigorous vacuuming and it doesn't seem to go away. The water is clear. We do run a chlorinator, but with the CYA levels already at 84 after the recent water swap, we are going to begin using the SLAM method with liquid chlorine and only relying on the chlorinator when we travel. We test frequently with FAS-DPD kit.
So here are the a few questions and I'm open to thoughts:
1. Is the algae green or yellow?
2. Is the CYA level preventing proper sanitization?
3. Should I drain some water and refill to get the CYA down before beginning liquid bleach?
4. I am trying to avoid putting anything other than Chlorine/Muriatic Acid/Baking Soda/Water in the pool, but am open to other treatment items if you have a suggestion.
Thank you in advance!
Pool:
13,500 Fiberglass
Chlorine pool with Hayward Chlorine Generator (more on this later)
Specs from pool store test:
FC: 6.5
TC: 6.5
CYA: 84 (more on this later)
PH: 7.7
TA: 106
CH: 193
Phosphate: 0
TDS: 1,000
-We were dealing with what I thought was Mustard Algae early in the season, we tried multiple rounds of super shock and it continued to return.
- We then, before coming here, added Yellow-out, which removed the Algae but flipped the pool to Bromine...so we did a total water swap 2 weeks ago without draining, using the method described here. The water was the best it had ever been.
-We are now seeing a dark green, easy to brush algae build-up on the bottom of the splash pool and the main pool. We have tried multiple rounds of shock, as well as rigorous vacuuming and it doesn't seem to go away. The water is clear. We do run a chlorinator, but with the CYA levels already at 84 after the recent water swap, we are going to begin using the SLAM method with liquid chlorine and only relying on the chlorinator when we travel. We test frequently with FAS-DPD kit.
So here are the a few questions and I'm open to thoughts:
1. Is the algae green or yellow?
2. Is the CYA level preventing proper sanitization?
3. Should I drain some water and refill to get the CYA down before beginning liquid bleach?
4. I am trying to avoid putting anything other than Chlorine/Muriatic Acid/Baking Soda/Water in the pool, but am open to other treatment items if you have a suggestion.
Thank you in advance!