Serious help needed

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Had to backwash the filter (losing prime):kim:. Pressure up to over 25 PSI; normal operating pressure after backwash about 5 PSI. The knee highs work too good and interfere with the flow of water to the pump. I need something not as restrictive, yet still effective. Anyone have any ideas?
 
I love watching threads like this - a lot of learning and a lot of hard work and a lot of good advice. It sounds like you've about got it. Now it's just hurry up and wait. Do the same for a few days and watch the improvements !!
 
GDN said:
I love watching threads like this - a lot of learning and a lot of hard work and a lot of good advice. It sounds like you've about got it. Now it's just hurry up and wait. Do the same for a few days and watch the improvements !!
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From your lips to G-d's ears !!!! Hope you are right:cool:

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FC at 1 PM CST July 4th

FC 18.5

added 2 gallons of 12.5%, which was a bit over what pool math stated.....

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Knee highs are filtering out too much and interrupting the free flow of water. I have ordered hair nets, and will attempt to add a little DE to my sand filter once my sand filter wrench arrives.
 
You do not want to go to mustard levels as it can damage your liner and equipment.

Using a higher fc level than regular slam levels also wastes bleach.

As stated earlier, mustard levels are only used when the regular slam is completed and are only raised to that level for 24 hours.
 
Re-raked and re-brushed to satisy myself that the muck/brown matter is gone. First raking: the entire rake effort throughout the pool pruduced a grand total of about 1-2 ounces of organic leaves/decomposed stuff, and what appears to be a few very small pieces of black plastic 1"X1" (2 or 3 pieces)that likely was a part of my delapitaded mesh pool cover. No brown muck, sediment liquified yuck or other contaminants were stirred up by my bottom raking, and none showed up in the rake net. Brushing produced the exact same result; nothing stirred up.

I should note that the pool stairs, at least the first two stairs which are visible had a bunch of dirt/sediment gathered there that was stationary. I brushed this area to get the stuff into circulation.

Anyhow, I am convinced that 99% of the yuck has been removed. I reinserted a new knee high in the skimmer basket, this time plucking multiple holes in same to promote greater water flow. As stated before, the knee highs are trapping a good amount of slimy/dirty stuff that is impeding flow to the pump. :rolleyes:
 
July 4th 5PM test results:

FC 28
CC 1.5

I am going to add small amounts of DE to my sand filter via the skimmer per TFP instructions.

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I have noticed that my CC levels have gone down by 50 percent since I started the SLAM procedure. Is that a good thing?
 

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This morning's numbers as of July 5th at 6:30 AM CST:

FC 20.5
CC 2.0

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This morning the pump had lost prime. I backwashed, and the water was mildly dirty. I added DE as I did last evening. I also performed a filter test by using knee highs at the returns. I wanted to see if sand or DE cloudiness occurred after adding the latter. The tests were performed once at each return. There was not a bit of debris, dirt, sand or any DE material, or anything that showed up in the knee high. I held the knee highs around each return for well over 2 minutes per return.

I have not added Chlorine since my FC exceeds the CYA/Chlorine chart, using CYA of 40 as reference.

Pool color remains green, and the water looks sort of dirty. I was able to see my fingers about 6 inches below the return (I assume returns are at a standard level?) in the deep end.
 
kcindc said:
Earlier you asked about alternative items to put on your skimmer basket to aid in filtration. These hair nets are used by a lot of users as they are cheap, disposable and do a great job filtering smaller particles. They will clog up quickly, so you need to keep an eye on them.

https://smile.amazon.com/gp/product/B002XK2FS0/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
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Thank you for your input. I have ordered hairnets from Amazon, expecting them tomorrow. I do find that the knee highs clog very fast, at least with the amount of debris being filtered in my pool. I poked holes in them (sort of defeats the purpose, but was trying to find a happy medium where they filtered but avoided some of the water flow stoppage), but that didn't work. I will wait for the hairnets.
 
richardc said:
This morning's numbers as of July 5th at 6:30 AM CST:

FC 20.5
CC 2.0

- - - Updated - - -

This morning the pump had lost prime. I backwashed, and the water was mildly dirty. I added DE as I did last evening. I also performed a filter test by using knee highs at the returns. I wanted to see if sand or DE cloudiness occurred after adding the latter. The tests were performed once at each return. There was not a bit of debris, dirt, sand or any DE material, or anything that showed up in the knee high. I held the knee highs around each return for well over 2 minutes per return.

I have not added Chlorine since my FC exceeds the CYA/Chlorine chart, using CYA of 40 as reference.

Pool color remains green, and the water looks sort of dirty. I was able to see my fingers about 6 inches below the return (I assume returns are at a standard level?) in the deep end.
Click to expand...

Sounds like you are making good progress!
 
The progress is that your FC consumption isn't too high.

Your pool didn't get a mess overnight and it won't get clean overnight. Sand filters take much longer to clear a swamp and you have a very big pool like mine. At this point you will need to stay the course. Are you taking a photo a day by the stairs so you can see your progress?

You can vacuum to waste once a day to get rid of the worst stuff which usually settles on the bottom of the pool. Make sure you brush daily because algae forms a biofilm and brushing removes the biofilm which allows the FC to kill it.

Otherwise, backwash when the filter reaches 25% increase.

Keep an eye on your reagents especially the FAS-DPD test as you don't want to run out during the SLAM.
 
kcindc said:
The progress is that your FC consumption isn't too high.

Your pool didn't get a mess overnight and it won't get clean overnight. Sand filters take much longer to clear a swamp and you have a very big pool like mine. At this point you will need to stay the course. Are you taking a photo a day by the stairs so you can see your progress?

You can vacuum to waste once a day to get rid of the worst stuff which usually settles on the bottom of the pool. Make sure you brush daily because algae forms a biofilm and brushing removes the biofilm which allows the FC to kill it.

Otherwise, backwash when the filter reaches 25% increase.

Keep an eye on your reagents especially the FAS-DPD test as you don't want to run out during the SLAM.
Click to expand...

Great advice, thank you. I will need to order reagent
 

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