Hey all. I have a pebbletec, 27k gallon pool, cartridge filter. When I moved in in February, it was my first pool, and a friend of mine who works in the pool industry recommended and helped me install an inline tab feeder. After following this website for a few months, I decided eleven days ago to switch off the feeder and go the BBB route. It just makes more sense than draining and refilling once a year.
On to the question: my pool likes to sit at about 7.6-7.8 pH. I've added soda ash to keep it there twice since moving in. Now that I've switched (not blaming the method, just timeline) my pool is increasing in pH. Three days ago, it measured at 8.1. I added 32.6 oz of muriatic acid (as per the pool math recommendation, and in smaller doses over time, testing often). That brought it down to 7.4 two days ago. Today, it measured at 8. From what I've read, there must be some other variable that's doing this, but I can't figure it out. The weather has heated up significantly the last couple weeks, but I can't imagine that would be it.
Some information about me as a person. When I latch onto something, I obsess. I decided that I would be the pool guy when we moved in, and have been laughed at by friends and family for how often I'm testing, adjusting, talking about, researching, and maintaining my pool. The water has ALWAYS been crystal clear.
Here are the rest of my readings from today:
FC: 6.8 (high, but my CYA demands it... stupid pucks)
CC: 0.4 (has been mostly at 0 until about 22 hours ago)
TA: 90 (high side of the acceptable range... is this part of the problem)
CYA: 75 (It was 80 when I switched. I've been deliberately splashing a lot)
pH: 8.0
CH: 280
temp: 84 (I live in central valley of CA, where it's 109 this week most days)
CSI: .34
Side note: I'm leaving on a four day vacation, and I lose about 3 ppm FC per day, so I'm going to bring levels up to 15 tonight so that it's hopefully at about 9 when I return on Friday night.
Please advise. Can't wrap my head around this one.
Thanks, guys.
Zach Stillman
On to the question: my pool likes to sit at about 7.6-7.8 pH. I've added soda ash to keep it there twice since moving in. Now that I've switched (not blaming the method, just timeline) my pool is increasing in pH. Three days ago, it measured at 8.1. I added 32.6 oz of muriatic acid (as per the pool math recommendation, and in smaller doses over time, testing often). That brought it down to 7.4 two days ago. Today, it measured at 8. From what I've read, there must be some other variable that's doing this, but I can't figure it out. The weather has heated up significantly the last couple weeks, but I can't imagine that would be it.
Some information about me as a person. When I latch onto something, I obsess. I decided that I would be the pool guy when we moved in, and have been laughed at by friends and family for how often I'm testing, adjusting, talking about, researching, and maintaining my pool. The water has ALWAYS been crystal clear.
Here are the rest of my readings from today:
FC: 6.8 (high, but my CYA demands it... stupid pucks)
CC: 0.4 (has been mostly at 0 until about 22 hours ago)
TA: 90 (high side of the acceptable range... is this part of the problem)
CYA: 75 (It was 80 when I switched. I've been deliberately splashing a lot)
pH: 8.0
CH: 280
temp: 84 (I live in central valley of CA, where it's 109 this week most days)
CSI: .34
Side note: I'm leaving on a four day vacation, and I lose about 3 ppm FC per day, so I'm going to bring levels up to 15 tonight so that it's hopefully at about 9 when I return on Friday night.
Please advise. Can't wrap my head around this one.
Thanks, guys.
Zach Stillman