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A few days ago, I was getting >0 CC readings and was trying to figure out what to do. So I took a step back, got my other numbers in order, and let the pool sit for a day. Did nothing. So here's what I did yesterday. Water is crystal clear, BTW. And CCs went to zero went I let it go. (I...

I just got a batch of new chemicals. Trying to SLAM my pool. (CYA of 50, PH ~7.2, TA 150-160) I woke up this morning and tested and saw that I was not at my target FC of 20. So added liquid chlorine and then tested 1 hour later. 4 test results: FC of 15, CC of 1 FC of 12, CC of 4 FC of 5...

Not sure if this is the right forum...please move if it's not. My pool has 2 skimmers, and 2 main drains. The 2 main drains get combined into 1 pipe, so for all intents and purposes, it's really one. I can shut off the main drain, which leaves the 2 skimmers running. If I try to vacuum...

I was getting some low CC readings, despite having spotless water. So I SLAMed it a few days ago. Had my FC in the 20-25 range, and was able to make both the CC go to 0, and my overnight use of FC to be 0. So I let FC drop back down to the 4-8 range, where it should be for CYA of 50. But...

I shocked my pool a few days ago, and have been watching how much the FC drops during the day. My CCs are pretty much at zero now, so I'd think FC would drop during the day as a result of sun, but not quite as much as I'm seeing. Over the past few days, FC dropped 24 to 15. Then 15 to about...

Hi - I'm a 10 year pool owner who has been quite successful using all the techniques I've learned here. I just moved to a new house with a different pool and have some questions on things I see that are a bit different. The new pool is ~29k gallons and currently has these specs: Water is...

My inground pool already has the mesh safety cover installed. I just bought a tarp-style winter cover to put on top to help the pool open cleaner next spring. It came with 16 water tubes. It occurred to me that normally a tarp cover sits in the water. So if I put it over the safety cover, it...

Hurrican Irene left me with pounds and pounds of leaves in the bottom of my vinyl liner pool (25k gal). It has taken days to get it all up. And now, particularly in 1 spot, I have a 6' (yes - foot) brown stain where the leaves had been sitting. Please tell me that I can get this off. Will...

My Northstar pump died (well, it was squealing like a pig and pool guy said it was dying). It was a 1.5 HP motor / 1.25 Service Factor. I called around and found a company that had one in stock (the pool company wanted to charge double the price I could find everywhere). They told me they had...

I have been using liquid chlorine to maintain my pool. I'm going away this Wednesday morning, and will be returning Sunday evening. 5 full days. I'd like to use some leftover TriChlor 3" tabs in the auto-dispenser attached near the pump to get me through those 5 days. Question: Assuming I...

Opened pool on Friday. Got all levels where they need to be, and am keeping FC at shock level. Water is still cloudy, but getting better every day. Do I need to keep at shock level until the sand filter clears everything up? Or am I to lower FC to normal levels now the CC is at 0? I think...

I have having my pool closed for me this year. I'm going to watch to learn how. They told me to drop the pH to 7.0 before they get there. I see other places 7.2-7.6. Mine is currently 7.5. What's the appropriate target?

This may have been answered before, but I'll ask anyway. The general TFP guidance is that I don't need to super chlorinate if I keep chlorine above the min level for my CYa. Yet, every chlorine product you buy in the stores will give you the "once a week / superchlorination" recommendation...

I drained a little more than 1/2 my pool, and refilled with tap water. I intend to go with liquid chlorine now, instead of Trichlor / Cal-hypo the pool guys were using. Just tested results: 25000 gallon inground, vinyl-lined pool 82 degrees (water) Direct sun from 8am to 4pm daily. CYa: 50...

Had very high CYA and CH numbers due to Trichlor / CalHypo regimen. Water is otherwise spotless. SO, draining roughly half and refilling today / tomorrow with water from hose. And then moving to a liquid chlorine regime (maybe with some algeacide / clarifier as well since I have so much of...

HI - New guy here, with a 25k gallon pool in need of draining. (High CH and CYa). My estimate is that I need to drop it by 1/2. I'm told it's dangerous to drain, and I understand why. But I don't need to go all the way down. The bottom will always be covered by at least 6" of water. Of...