Current test reading, Taylor kit:
FC: 5
TC: 5
TA: 100
pH: 8.2 (was 7.5 Monday) **added 6 cups 31% MA, will retest at noon and add more if needed, which I think it will be.
CYA: 50
CH: ~200....this test kills me. Faint pink/red, 23 drops later MAYBE a hint of blue).
Recently had my 14yr old vinyl liner replaced by original builder. No issues with that at the moment.
Previously w/ old liner I rarely had any issue maintaining recommended pH levels. I used bleach and/or calcium hypo fairly exclusively (pucks ONLY when managed by neighbors when we were on vaca). Added pH down or MA every so often. However, with new pool liner and fill water from well which has a TA of 140, I struggle with pH. I have successfully lowered TA to 100 a few weeks ago. But my pH still rises from 7.4-7.5 up to 7.8+ every 4-5 days. I've gone through about 4 gallons of muriatic acid to maintain control.
I'm currently using cal-hypo exclusively as bleach always tends to raise my pH. I do not know what else to do. Do lower my TA even more? I think so. My testing notes from before new liner install show TA ranging 70-90 consistently w/o pH yo-yo.
I need to keep pH out of upper end range to due suspected iron in fill water/well water. I use sequestrant monthly for maintenance. Had a post about this in April. Prior start up metals thread
I guess my overall question is this:
#1. do new liners tend to push pH higher? Is there something inert in them that causes this? (I've searched, I say no).
#2. is my only recourse to continue to drop TA to my old range of 70-90?
Thanks! This has me vexed.cHappy swimming everyone!
FC: 5
TC: 5
TA: 100
pH: 8.2 (was 7.5 Monday) **added 6 cups 31% MA, will retest at noon and add more if needed, which I think it will be.
CYA: 50
CH: ~200....this test kills me. Faint pink/red, 23 drops later MAYBE a hint of blue).
Recently had my 14yr old vinyl liner replaced by original builder. No issues with that at the moment.
Previously w/ old liner I rarely had any issue maintaining recommended pH levels. I used bleach and/or calcium hypo fairly exclusively (pucks ONLY when managed by neighbors when we were on vaca). Added pH down or MA every so often. However, with new pool liner and fill water from well which has a TA of 140, I struggle with pH. I have successfully lowered TA to 100 a few weeks ago. But my pH still rises from 7.4-7.5 up to 7.8+ every 4-5 days. I've gone through about 4 gallons of muriatic acid to maintain control.
I'm currently using cal-hypo exclusively as bleach always tends to raise my pH. I do not know what else to do. Do lower my TA even more? I think so. My testing notes from before new liner install show TA ranging 70-90 consistently w/o pH yo-yo.
I need to keep pH out of upper end range to due suspected iron in fill water/well water. I use sequestrant monthly for maintenance. Had a post about this in April. Prior start up metals thread
I guess my overall question is this:
#1. do new liners tend to push pH higher? Is there something inert in them that causes this? (I've searched, I say no).
#2. is my only recourse to continue to drop TA to my old range of 70-90?
Thanks! This has me vexed.cHappy swimming everyone!