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Update. I started adding about 1.25 cups of DE to the sand filter 3 days ago and I have been maintaining a FC of about 24ppm since my last post. The lowest it has dropped is to 19.5 and it has gone as high as 27. I have not bothered with PH. Pump is running continuously and I have been back...

Yes running filtration 24/7 and I am out getting DE now

As promised here are the pictures: Vacuum pole going down, big picture Close up: I was at 23ppm of FC around 1pm so I added 32 oz bleach

FC this AM is 20.5 PH somewhere between 7.8 - 8.2 Added 128 oz bleach @ 7:10 AM

Thanks Duraleigh, big fail on the picture again, sorry, lately I have been working my butt off so I am only home early AM or late evening when lighting is bad for a picture. Just did a very thorough back wash since I needed to get rid of the recent rain water Then Tonight FC was 4 so with a...

I just double checked and that is indeed what the TF 100 instructions say regarding TA. This mornings numbers are FC 7 PH with the overnight rain has crept up to somewhere between 7.2 and 7.5. Tonight I will do a super clorination based on a CYA of 55 and go an extra gallon for good measure...

Thank you for your insight, it is greatly appreciated. I have added well water over the summer whenever the level was down, maybe 10 inches over the summer in a 54" pool. When the pool "got away from me" the PH was very high and chlorine near zero and color was a turquoise-ish green but also...

Duraleigh, thank you again for your input. The only reason I mention the TA is because the TF 100 test kit says that the ideal TA for a normal pool ( not salt water ) is between 100 - 120. the pool school specs seem to be more liberal. The pool is still the same green and I am sorry i have...

This morning FC 7.5 PH 7.2 Still wondering if I should do anything about TA as stated in previous post

Ah sorry, I did not notice that you have an in ground pool. Pump is above water level so it will flow out. Still if you have a valve on both the suction and return and they are both closed I don't see why you should not be able to fill the basket with water. Force of habit for me to put...

Remove the cover on the basket skimmer of the pump and carefully take out the O ring gasket. make sure it is smooth, free of cracks and or slices. Clean out the channel/groove it sits in very well along with the surface it sits on when the cover is screwed in place. now smear a liberal...

I will take a picture tomorrow, I was working all day sorry. So hold to the 6-8 ppm FC for about 3 days even though CYA is around 55 - 60? Tonight's reading after the sun went down were: PH = 7.2 FC = 7.5 CC = 1 ( it was barely, ever so slightly pink after the 1st drop and the 2nd made it...

This morning FC was 12. It dropped 1.5. What do you guys think? check again tonight when it should be below 10, adjust PH and then do a real shock? Question, does chlorine not evaporate out under normal circumstances even in the evening? Weather in Raleigh NC last night no wind, about 73...

Thank you linen for taking the time to respond, much appreciated.

I just realized I may have made a critical error in determining FC.......the past 3 times ( figures in my original post ) I did not multiply the number of drops by .5.....Duh I cannot be certain I am reaching the correct shock number as per my CYA of about 55-60. Right now FC, an hour after...

Thank you for the encouragement and sharing. I will report results as they are obtained. Initial PH work was done with chlorine levels very low to non existent. My thinking was to do that first before shocking. In my exuberance and subsequent loss of patience I continued to fiddle with PH...

OK I am going to do an overnight chlorine loss test and see what that shows. I think i have over fiddled with chemicals and with FC so high my PH tests are worthless. Thanks for this great resource and letting me think out loud.

when I first filled my pool from my well at the beginning of this season the water looked fine until I added liquid chlorine and the water turned green. My PH was also high but I don't remember exactly what it was since I had an el cheapo 2 tube shake n bake chlorine and PH kit. I read...