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Final update, people who may come across this thread and had same issue as me may find this helpful. - I fixed the PH first (used Muratic acid from local store and it was cheap and effective). I allowed FC to drop to 1.0 before adjusting PH as the forum said that ph can be incorrect at high FC...

thanks. should i fix ph first or keep working on chlorine? Last night my FC was 1.0 and CC was 1.0 I used 4 large jugs of bleach (6%) last night and my number this morning was FC: 8.0 CC: 0.5 (i underestimated the amount of bleach needed (used calculator later) and will get more today)...

Hello again, took a break while I got the system upgraded. Got a new Pentair TR100C filter with glass media and a new multiport valve. Everything was installed yesterday and pool's been running for 24 hours now. Pool was shocked by 25lbs of Calcium Hypochlroite - Ultimate TKO brand (it was...

I will get the latest numbers tonight. Meanwhile, my question is also: why would dirty water come back as it to the pool (through inlets) even thou it is going through the sand filter. As I mentioned above, I changed almost all of the water and vacuumed other debris out from the pool using a...

Thank you, I just updated the signature as well. - I test the water using Taylor kit, and all numbers looked good (Chlorine, FC, Ph, CYA, Alkanity) - Never cleaned the sand (not in 10 years atleast) - Pool is outdoors (Seattle) and next to bunch of trees, which drop lot of leaves and other...

I have 25 year old in ground pool (~30k gallons). Current filter is sta-rite (30 inch model with 400lbs of sand) has been in place for these 25 years. I bought the house 4 years ago and the last owner told me he replaced the sand in 2007 (he could not generate a receipt or any paper work thou)...

Thanks to you all. Just ordered a taylor kit

Also, Pool water is very clear right now, and the pump is running 11 hrs everyday.

Just moved into a house which has an inbuilt in ground pool. I have never owned a pool before and trying to learn the chemistry portion of maintaining the pool. I ran a test yesterday (using Pool Master kit) and here are chemical numbers - Total Chlorine: 5 - pH: 8.5 - Total Alkalinity - 50 I...