Dear fellow pool owners,
I have been facing an issue with the pH levels ever since July. Coincidentally, around that time I switched from granulated chlorine to liquid, but this could be just a coincidence.
Problem definition: pH is constantly above 8.0, most times 8.2 or above. I'm talking about going from 7.5 to above 8.0 in a matter of 3-4 days.
These are the water levels (some measured last night, some measurements are older but consistent through time so I have no reason to believe they've changed):
FC: 3 (I use Liquid Chlorine 10% exclusively)
pH: 8.2
TA: 110 (measured Sept 4th)
TH: 260 (measured Aug 31st)
CYA: 30 (measured Aug 31st)
Things I've done:
-- I have lowered the pH 3 times in the past couple of months using the typical pH-Down products (and Muriatic Acid substitute in one instance), but it keeps climbing.
-- I've backwashed the filter a couple of times, adding D.E. after that.
-- I generally keep the pool clean, vacuuming in a weekly basis (and more often during peak season) and cleaning skimmers every couple of days. Water is clear and algae free.
-- I've added a lot of water due to large evaporation loss. When the weather hit almost 100 here, I would add water almost in a daily basis. September has had much less water addition/replacement though, due to slightly lower temps.
Kits I use:
-- Taylor K1001 for FC and pH (Amazon.com : Taylor K1001 Basic Residential DPD Pool or Spa Test Kit : Swimming Pool Liquid Test Kits : Garden & Outdoor)
-- HTH 6 way kit (Amazon.com : hth Pool Test Kit 6-Way Test Kit (1173) : Garden & Outdoor) for the rest
I understand the second one is not generally among the recommended kits, but we're talking about a very obvious trend here and not just about small deviations in accuracy.
Let me know what you think and what suggestions you might have. I appreciate all the input.
Alex.
I have been facing an issue with the pH levels ever since July. Coincidentally, around that time I switched from granulated chlorine to liquid, but this could be just a coincidence.
Problem definition: pH is constantly above 8.0, most times 8.2 or above. I'm talking about going from 7.5 to above 8.0 in a matter of 3-4 days.
These are the water levels (some measured last night, some measurements are older but consistent through time so I have no reason to believe they've changed):
FC: 3 (I use Liquid Chlorine 10% exclusively)
pH: 8.2
TA: 110 (measured Sept 4th)
TH: 260 (measured Aug 31st)
CYA: 30 (measured Aug 31st)
Things I've done:
-- I have lowered the pH 3 times in the past couple of months using the typical pH-Down products (and Muriatic Acid substitute in one instance), but it keeps climbing.
-- I've backwashed the filter a couple of times, adding D.E. after that.
-- I generally keep the pool clean, vacuuming in a weekly basis (and more often during peak season) and cleaning skimmers every couple of days. Water is clear and algae free.
-- I've added a lot of water due to large evaporation loss. When the weather hit almost 100 here, I would add water almost in a daily basis. September has had much less water addition/replacement though, due to slightly lower temps.
Kits I use:
-- Taylor K1001 for FC and pH (Amazon.com : Taylor K1001 Basic Residential DPD Pool or Spa Test Kit : Swimming Pool Liquid Test Kits : Garden & Outdoor)
-- HTH 6 way kit (Amazon.com : hth Pool Test Kit 6-Way Test Kit (1173) : Garden & Outdoor) for the rest
I understand the second one is not generally among the recommended kits, but we're talking about a very obvious trend here and not just about small deviations in accuracy.
Let me know what you think and what suggestions you might have. I appreciate all the input.
Alex.