Cleaning saga continues

[Kurt/Shelley]

Quick synopsis regarding opening pool, pool cover tore during wind storm and leaves, debris, sediment all settled in pool. Opened 2 weeks ago, vacuumed, scrubbed, shocked, repeat daily. There is a dead spot in the center where everything accumulates, spot is probably 8" dia., tonight I vacuumed and per the pictures there are what looks like small worms. Every morning I add chlorine and brush, in the evening I vacuum, scrub and add bleach. FC at night around 25, in the morning around 18, add chlorine to about 30, at night when I get home around 12 to 15. Water was cloudy and finally cleared. Thinking maybe I need to replace the sand in filter. Any insight would be helpful.

 

[zea3]

What is your current set of test results, including CYA level? You can deep clean the sand in the filter without replacing it. Deep Cleaning a Sand Filter

 

[Kurt/Shelley]

FC 20+, low 12 to 15 during the day
CC .5
PH 7.6
TA 60
CH 360
CYA 50

One note to add, the output diminishes so I backwash and rinse and it gets better and ten diminishes again.

 

[Oly]

Every year in the spring for several weeks my pool surface collects millions of tiny (1-3mm) flying insects, thrips. They can only be viewed on the surface in the right light. Many of the thrips get pulled off with the skimmer and will foul my skimmer hair nets in only 3 to 4 days. Without the skimmer hair nets they would be fouling my DE filter. Many of these thrips also sink to the bottom of the pool and collect in select areas and are removed with the fine filters in my bot. When I first noticed this a couple of years ago I assumed these masses on the bottom were algae and was perplexed as my chemistry was TFP perfect. After collecting the debris, first with a turkey baster and later with a long 1/2 pvc pipe capped with my thumb then siphoned up, I examined them under a scope and discovered they were thrips. Not sure this is your issue, just telling you my story.

 

[zea3]

Are you able to add chlorine more than twice a day? You are doing a slow motion SLAM Process at the moment, and adding chlorine every couple of hours will speed things up.

 

[Kurt/Shelley]

Unfortunately no, my wife and I both work and there is no one that could come over to add.

 

[zea3]

If you can modify your dosing schedule a little bit, once when you wake up, once when you get home, once at bedtime and hit it hard on your day off that would speed things up a bit.

 

[Kurt/Shelley]

Yes, I was home today and have checked every couple hours, did brushing and checked numbers. I'll continue over the weekend.