Where do you soak your cartridge?

Jul 3, 2017
11
Joppa, MD
First of all, I did read the Pool School article and the thread it linked to about cleaning the cartridge.

1. It mentions soaking the cartridge. What do you soak it IN? Like, what container. My cartridge is 200 sq ft, so it is kind of big. I am trying to think of something I can soak it in, besides the bathtub. Do you have any suggestions?

2. We replaced the cartridge at the end of June. After a couple of weeks of trying to get rid of algae, I finally remembered that I have to clean the cartridge. So, on Saturday, I rinsed it out. Everything seemed fine. A lot of cloudy water flowed out during cleaning. I rinsed the inside of the canister as well and drained it. Refilled it, and everything worked fine. The pressure was normal. (Around 10 psi). On Sunday (yesterday), I tried running the vacuum. That's a whole other post, but it is an old Pool Cleaner. We have a Hayward leaf canister that I put in line with the vacuum. There is silt? (some leaf matter, and residue from when they put the new concrete around the pool), so I put a pair of panty hose in the leaf canister, over the blue bag that is in there. It did seem to catch a lot of stuff, but I am thinking it didn't catch it all. The vacuum did not appear to do much. There is still stuff at the bottom of the pool. A lot got stirred up during vacuuming and brushing, so I rinsed the panty hose and put them on my skimmer basket to, hopefully, filter some of the smaller particles before they go through the pump. When I checked it at midnight, the pressure was 30. I couldn't do anything with it before bed, so I turned it off. This morning, I rinsed the cartridge and canister, then turned it back on. I also brushed the pool, which may not have been that smart. Within an hour, the pressure was back up to 30.

Tl,dr: My pressure is usually around 10, after rinsing the cartridge this morning, it went up to 30 within an hour. I am planning to clean the cartridge more thoroughly, but is there anything else I should be doing? Could there be something stuck somewhere else?

3. This cartridge is almost a month old and it already looks a lot like the one we replaced. The top is swollen, so you can't take it off the post that goes up the middle of the canister. The post comes apart, so we take the cartridge out with the top part of the canister post still inside. This makes it difficult to rinse inside the top part of the cartridge, but if we lay it on it's side, we can spray up in there. The last thing I do is put it all back in the canister, open the drain at the bottom, then hose the cartridge in the canister until the water running out of the drain is clear. Also, the rubber around the bottom of the canister is cracked in several places. It was like that the first time we pulled it out of the canister. Is any of that normal?
 
Maybe you have something else going on besides the silt. Can you post a full set of current test results?
 
A couple of quick thoughts -

Clean cartridges in a large outdoor plastic trash can (rubbermaid) and put a large trash bag in it to act as a liner. You can use less volume of cleaning solution by simply filling the bag part way and then cinching it up at the top.

Was you filter plumbed correctly? Is the pump pushing water through it the right way?? From what you describe (a cracked and bulging cartridge), it sounds like the water is going the wrong way....
 
I'm glad you brought up the plumbing. When we opened the filter the first time, we wondered if it was backwards. The black support column will only go in one way, but the arrow marked "Align With Filter Inlet" is pointing towards the outlet. At least that is what it looks like to us. After reading your comment, I watched a YouTube video on how to clean the filter, hoping to see if theirs was set up the same. It's hard to see in the video, but it looks like theirs is turned the other way. I've attached a picture of my filter. This is not the clearest picture, but I ran out of space for pictures and I don't know how to delete them from this site. The air sock is lined up with the pipe that comes from the pump. The "Align with Inlet" arrow points to the pipe that goes to the returns. I found the owner's manual on-line, but it did not tell me which way to turn the filter. We bought the house in a short sale in Feb, and don't have a lot of info on the pool.

I don't have current test results. I ran out of FAS-DPD drops last night. New ones should be here by Wed. I've been doing a SLAM, so I don't think the Ph is accurate. These results are from the 14th. The chlorine level was 17 yesterday afternoon. I added a quart of bleach before bed and another this morning, since that is about what I've been adding while testing.
7.14.1710:50 AMFC: 13.5CC: 0.5Ph: 7.6---TA: 140CH: 180CYA: 4585 F
 

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I've just learned the searching for "how to install filter", even when you include the brand and model, will not tell you much. Googling "filter installed backwards" will lead you to a youtube video that shows a filter installed exactly mine. Thank you JoyfulNoise for prompting me to look into this. We just assumed we were wrong when we looked at it. It has been here for years! We know it is at least 5 years old, based on when the owner's started renting out the house. It's not surprising that this is backwards. Half of the things they did here don't make any sense. LOL

Also, I've rinsed the cartridge 3 times today and the pressure is lower. I do think it is concrete silt, or whatever you want to call it. The water is very cloudy and a grey sludge is left behind when I move the cartridge from where I was rinsing it. Thank you for all of your help!
 
Glad to answer questions.

When cartridges are run backwards they are effectively ruins because there's just no way to clean them on the inside. So you're going to need a new cartridge at some point.
 
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