Hi All,
I've looked at all the guidance here on TFP and focused on keeping my chemistry in range using PoolMath. However, it seems while I'm in range with the TFP recommendations, my CSI is highly negative.
For example, here are my readings:
FC 5
pH 8.2
TA 60 (2 weeks ago)
CH 500 (15 days ago)
CYA 70 (17 days ago)
Salt 3450
BOR 48 (14 days ago using Mannitol method)
Water Temp 66
CSI -.37
I usually won't let the pH get above 7.8 or 8.0 at the most before I chase it down to 7.2 or 7.3 using muriatic acid as that's my understanding of the TFP recommendation. I let the pH climb a little higher as the water is a good 15 degrees colder with the cold weather in Austin right now and the cold water seems to make pH go further negative.
That said, if I push the pH down to 7.2 (using liquid muriatic acid) with the stats above, it says my CSI would be -0.77 which seems troubling. When I check the impact of zero'ing out the Borates (using poolmath), the CSI swings from current -0.37 the way to 0.18.
Should I be allowing the pH to rise more instead of pushing it back down with acid? Won't it cause scale if I allow pH to go higher? I would greatly appreciate thoughts, suggestions, and recommendations.
I've looked at all the guidance here on TFP and focused on keeping my chemistry in range using PoolMath. However, it seems while I'm in range with the TFP recommendations, my CSI is highly negative.
For example, here are my readings:
FC 5
pH 8.2
TA 60 (2 weeks ago)
CH 500 (15 days ago)
CYA 70 (17 days ago)
Salt 3450
BOR 48 (14 days ago using Mannitol method)
Water Temp 66
CSI -.37
I usually won't let the pH get above 7.8 or 8.0 at the most before I chase it down to 7.2 or 7.3 using muriatic acid as that's my understanding of the TFP recommendation. I let the pH climb a little higher as the water is a good 15 degrees colder with the cold weather in Austin right now and the cold water seems to make pH go further negative.
That said, if I push the pH down to 7.2 (using liquid muriatic acid) with the stats above, it says my CSI would be -0.77 which seems troubling. When I check the impact of zero'ing out the Borates (using poolmath), the CSI swings from current -0.37 the way to 0.18.
Should I be allowing the pH to rise more instead of pushing it back down with acid? Won't it cause scale if I allow pH to go higher? I would greatly appreciate thoughts, suggestions, and recommendations.