SeaSun42

Member
Jun 4, 2024
8
South Carolina
Pool Size
12000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Intex Krystal Clear
Hey Everyone!

Been struggling with cloudy water and doing a SLAM for about 2 weeks now, and the water is either very very slowly getting better or Im losing my mind and hallucinating (probably). Anyway, today after a backwash, I decided to pull a sample of water straight from the output hose after the rinse cycle (left cup in picture below) to compare a sample of the water straight from the output hose after it filtered (right cup in the picture below). As you can see the rinsed water is appreciable clearer than the filtered water. Is it normal for the rinse water to be clearer than the filtered water? Or does that mean theres something wrong in the filter? My pool chemistry is below in case that matters:
pH (checked before slam began): 7.5
CYA: 30
FC: 12

Thanks in advance for any help!!
 

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Take a picture from the same spot every day. Makes it easier to tell the difference.
You might add some pool DE to your sand filter to help:
 
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Backwash. Note filter pressure. When filter pressure rises 25%, backwash again.
What filter do you have (make/model)? Can you post pictures of your pad?
When was the last time you checked your sand level? Sand level can go down over the years. With a lower sand level your filter will not be as effective.
 
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We have an Intex Krystal Clear Sand Filter (2800gpm). This is only the second year we've had it and last year we only ran it for maybe 2months before closing for the winter (we installed it ourselves and it took waaay long for ground prep than we anticipated).
 

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