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No problem at all Richard. I appreciate all the help!!! Keehan

It seems like it. I'm not sure what it is, but I can feel a bit of crustiness on the liner. Yes vinyl Intex AGP pool. I don't think I should sandblast it. :) Thanks, Keehan

Bump. How to deal with calcium buildup? Do I need to scrub it off or can it be dealt with chemically. SWG still offline. FC at 3 this morning. Added 40 fl oz 10% bleach to bump back to 8. Water getting clearer every day. Thanks again, Keehan

What is the best way to deal with this? Mechanically scrubbing or is this something that can be dealt with by altering pool chemistry? I also noticed a couple of days ago that the pool vacuum handle (aluminum) had many small buildups on it as well. Still sound like calcium? My SWG is now...

I was able to see the bottom center of the pool yesterday. I took a saw and hacked the plastic grate off of the intake inside the pool. This allows me to vac to waste and not getting that strainer full and having all the bits go back into the pool. Plus the sand filter has a built in strainer...

My CYA is 70 so shock target is 28. I find that this 10% bleach overshoots the target a bit. I know about POP. I was doing this for 3 weeks with the cartridge filter and now a full week with the sand filter. I'm try to be patient but man this is painful. Hopefully just a few more days...

2013-07-05@22:40 59 drops, 29.5 PPM FC, 1 drop, .5 CC

OK, pool is slightly clearer, but still not as clear as I would expect. I had to backwash yesterday and let the chlorine go for a day and a half. This morning FC was still 11.5 PPM with 0 CC. Will bump it back up to FC back to 28 (ADD 128 fl oz 10% bleach) again and do a measurement tonight...

I will keep it up for awhile. I guess that is why we have the XL kit for TF-100. I can see the bottom today, but still pretty cloudy. I had the pump output up and to the left forming a circular current around the pool. I have moved the output direct to where it is still pointed left, but now...

2013-07-02@07:00:00 FC: 60 drops, 30 PPM (FC should not go up, so I blame bad lighting last night). CC: 1 drop, .5 PPM So, overnight we do not have any FC loss. This has been confirmed 2 nights in a row. I can still barely see the Intex grid on the bottom of the pool. The Intex sand filter...

2013-07-01@22:00 FC: 50 drops, 25 PPM CC: 1 drop; .5 PPM Need to get FC back up, so with target of 28, PC says to add 23 vol oz 10% bleach. I added 24 vol. oz. 2013-07-01@23:20 FC:58 drops; 29 PPM

Thanks for the feedback guys. I understand the OCLT shock criteria, but I had been at shock level for 2 weeks. The pool would hold FC level overnight but the pool never got clear (went from green to blue white). That is kind of why I added the sand filter and why I am now tracking this so...

2013-07-01@07:15 FC: 76 drops, 38 PPM. So, my FC is the same as last night, but I have only been at shock level for 6 hours. Does this mean that I have passed OCLT criteria or should I keep the FC at shock level for another day and test OCLT overnight tonight again? I have been shocking for...

2013-07-01@1:00 FC: 76 drops. 38 PPM Wow. I overshot that one. I have noticed that even when I measure very closely the 10% bleach I have seems to have more effect than the pool calculator predicts. I need to get better measuring tools so I can pin this down. Anyway, will check again in the...

Adding my target values so this is all in one thread. Vinyl Pool with SWCG: FC:3-5 PPM FC Shock: 28@CYA of 70 pH:7.5-7.6 (can go to 7.8 then lower pH back to 7.5) CH: 50-300 CYA: 70-80 (shoot for 70 as lowering this is done by removing water) Salt:2500-3500 (target 3000)

OK. Done with my additions for today. @19:53 pH was 8.2. PC target of 7.5 asks for 9.2 vol. oz dry acid. I added 9.5 vol. oz. dry acid ------------------------------- @ 22:00, pH measured 7.8. After reading a bit more on pool calculator, I set my pH target to 7.2. Let's see if this...

Alright, well, this is an existing Intex above ground pool. Details in Sig. We had the pool up and running last year. Over winter, we succumbed to laziness and in turn, the green monster of algae. I let it go until about 3 weeks ago, I started trying to clean up the swamp. I purchased the...

Well, the pump has been running most of the day and I don't see any real improvement. I did open up the pre-filter basket and found a bit of sand in there. Not sure where that came from. My guess would be from the vacuum I did today, but can't be sure. I opened the sediment drain and cleaned...

Well all, first post to the site. After weeks of frustration with my Intex "A" canister filter, I picked up the Intex 2650 GPH sand filter. I got it all assembled today, went to the pool store, picked up $20 worth of sand and a pretty pricey 100' by 2" backwash hose. Anyway, I installed the...