cloudy after shock

[daniel smith]

First time pool owner and learning the ropes. Everything was going smooth until I went on vacation. I returned to a green swamp. I initially used strips which showed FC 0 and CYA 0. I corrected ph, then added cya and shocked with bleach until FC continued to read high on strip overnight. Water changed from green to blueish but is still cloudy. Frustrated I called a friend and long term pool owner and he recommended the BBB method and TFP. Great site with lots of info and fantastic pool school. After 5 days of cloudy water, I ordered a real test kit. FC stable overnight and no CC, but still cloudy. These are my most recent numbers,
Ph 7.5
FC 14
CC 0
TA 80
CH 70
CYA 40

I dont see in algae or green areas, but I can only see bottom in shallow end as pool continues to be cloudy. What do I do next???
Thanks
Dan
27000 gallon in ground pool, Jacuzzi Magnum Force pump, Hayward High Rate Sand Filter, Pool Pilot Digital SWG.

 

[Bama Rambler]

You've done well grasshopper! Welcome to TFP.

Have you read about adding a little DE to your sand filter?

 

[daniel smith]

i have read the section, but had been thinking the sand filter would just take longer to clear the dead algae. However after initial daily improvement, now it is minimal. I have been backwashing 1 or 2 times per day. How long is needed typically for sand filter to clear? Or do I just need to add the DE since it has been 1 week?

 

[Bama Rambler]

Since it's been a week, I'd add about 2 cups of DE to it and see what happens. Watch the pressure when you do because it may climb pretty fast.

 

[Smykowski]

Your choice to add DE or wait. My guess is either will work, you just have to decide how much patience you have.

 

[jblizzle]

You may be backwashing too often. You only need to do it when the pressure rises 20-25% over the clean pressure. As the filter gets dirtier, it will catch smaller particles, but if you wait too long, the flow is reduced too much.

 

[daniel smith]

pool is beginning to clear, I can see the bottom in the deep end. Cl levels stable. Thanks so much, looks like I just needed a litle patience.