Cleaning a D.E. filter Top Manifold (Jandy, FNS, Hayward, Titan) D.E. leaking into pool

Swimming Pool Tips, Reviews & How To - SPL

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You can also do this while it is in the tank if it is too heavy for you to lift out:
You want to remove the top manifold and leave all the grids in the tank. Now we want to take the partial grid out first -- the small little one and check it. After you inspect it and find it is ok or not -- replace it back into the tank along with the other grids. Then take another gird out. So take one grid out, inspect it -- change it if torn and replace to back in its slot in the tank. This is how you do it so that you can easily rebuild it. If you pull all eight grids out you are going to have some difficulty in rebuilding it. So you want to do this until all eight grids are inspected for tears. The grids all should be near or in the proper place to drop the top manifold down. Carefully put it back on over the grids. This will take some time as it is challenging. But be patient. There is no real trick -- you just need everything to be aligned perfectly and it will drop back down. You want to tighten it up good so that there are no gaps.
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Notes:
In this video I show you how to clean a top manifold D.E. filter. You will find this configuration on Jandy, Pentair FNS plus, Hayward and American Products Titan filters. I will show you a simple way to clean them without taking them apart. I also show you how to check for damaged grids that cause D.E. to leak back into the pool.
The top manifold filters are not easy to take apart and rebuild unless you have done this several times. Some have one rod and others have 2 rods holding them together. The key is to take just one grid out while keeping the rest intact (having a helper would be great) that way you don't lose the pattern. If you take all 8 grids apart at once, chances are you will struggle to get it back together.
There is a guide on the newer filters so use it to rebuilt the filter. The grids should align with the guide. Also the top manifold has a pipe that goes back on the stem inside the filter, the bottom manifold will have a gap that aligns with this right next to the small partial grid. Some top manifolds are marked "small grid here" to help with the alignment.
Once you start putting the grids back into the top manifold it is crucial you do this very carefully as to not break off more plastic tops from the grids. Each grid will run you about $30.00 so you don't want to replace more than you need too. They are incredible fragile unfortunately.
So, with that said if you don't need to take this filter apart, don't. Unless it is leaking D.E. just clean it like I did in the video.
Lastly, before you start this project go to your local pool store a pick up a STEM O-RING, just tell them your filter type, all of them should be the same o-ring. That is the little black o-ring seen in the video before I put the grids back in the filter.
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5 окт 2024

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Комментарии : 85

@SPL 12 лет назад

You will D.E. coming out of the return lines, sometimes only when the pool first turns on. You will also see grey dirt at the bottom of your pool (that is D.E. that has come back into the pool). You may also have more algae growth do to the filter not working correctly as it is supposed to filter out organic debris but with a leak it works inefficiently. The leak may not be obvious but those are the signs to look for.

@SPL 11 лет назад

I am actually sitting at my computer right now editing a new video. Thanks for the compliment. I try to cut out all the fat and leave just the meat. I will watch my own video several times and cut out the parts that are slow or unnecessary. Very time consuming but I enjoy it. Check out my other videos when you get a chance.

@SPL 12 лет назад

Glad I could help. This filter configuration is a bit challenging to the Homeowner and us Pool Service Techs too. The engineer who designed it had too much time on his hands.

@agregory20166 8 лет назад

Thanks for the great videos - they really help! My Pentair is leaking DE back into the pool and this is just the info I need to take care of it.

@LuciddreamZ1 11 лет назад

Your videos has helped me get my pool blue again after replacing all the grids on my hayward DE-2400. 24 sq ft. the pool is blue but cloudy. thanks to your video. I put in 5 1lb cofee jugs and after about an hour or so the water flow get slow and the pressure on the filter jumps into the red zone. I have backwashed and it goes back to normal but it does it again after awhile..I'm lost. Im all ears. Thanks

@issamabdalla1819 11 лет назад

Hey I know I'm annoying you with too much questions but I hope you are of help because from watching your videos, you see, pretty experienced and well knowledges about your pool jobs

@SPL 11 лет назад

It could be one of three things. Maybe a grid cracked on top when you put the top manifold back on - it happens. Next, I have had a pool with the Standpipe that came unglued right where the part the o-ring sits on attaches to pipe. When the pool turned on it would lift up and then settle back down. I put some pipe glue and problem was solved. I think your problem could be the backwash valve. If an o-ring is worn out it will leak D.E. back into the pool. Is it hard to pull up or push down?

@raaah 9 лет назад

watched a couple of videos and you are a life saver

@SPL 11 лет назад

The amount of DE you are adding is fine. That is a pretty small filter for that size pool. Should be a 48 sq ft DE filter. You can vacuuming after everything settles. You might have to clean your filter again. Backwashing might not do the trick if the grids get clogged. Eventually once it clears you should be able to go 6 months in between cleanings.

@SPL 11 лет назад

The Stem pipe seal might be broken. It is the white pvc pipe that the stem o-ring sets on. Maybe when you backwash the manifold lifts up and then when you put it in filter mode it settles back down. When you backwash the grids fill with water and expand and maybe it lifts up at that time. I have had one do that before. It looked like one solid piece but the part where the stem o-ring sat was actually unglued from the rest of the pipe. What filter brand is it?

@SPL 11 лет назад

The D.E you add to the filter needs to go somewhere. If there is no D.E. on the bottom of the pool then it must be leaking out your backwash line. That means the backwash valve is leaking. If it is plumbed into a drain you may not notice it. What type of backwash valve do you have on the filter? Is the pool losing water also?

@LuciddreamZ1 11 лет назад

Thank you very much for the quick reply. My pool is about 15,000 gallons. 14.60 on one side and 14.70 on the other. Its 30 foot long. 15x30.

@SPL 11 лет назад

Sounds like there is a lot of organic debris clogging the new grids. Even with a coat of D.E. the organics in the water will clog up the filter. I suggest adding a clarifier like SeaKlear or a Floc Agent to clump up the organic debris in the water. You will have to clean your filter again. How large is your pool - that is a pretty tiny filter.

@SPL 11 лет назад

The spider gasket on the bottom of the multiport valve usually will be the problem. Does DE leak in when you start the pool up too? How much DE are we talking about? You replaced all the grids also?

@morrislutes2158 9 лет назад

Great Videos! My filter problem is a little different though. We bought an older home with an in ground pool. We have a new Pentair variable speed pump and I've replaced all 8 filters, making sure that the tips line up and the grooves line up, on a Hayward DE 60sqft, with new gaskets and a new O ring with the metal reinforcement (the cheaper O ring without the metal did not seal my old filter system but the new one works great. I also replaced the DE manifold and straw with a sock on it. My pressure runs around 12-16 on the dial. When I add Water Clarifier the pressure gets up to 20. The problem is that the filter runs for two days and the pool still looks cloudy and murky! I've added 2 lbs of Clorox Extra Blue granules, a bottle of clarifier and 3 lbs of Clorox Shock.The filters do not have much DE or algae, most of it is sitting in the bottom of the pool. I did notice that when I have the pump on and I open the backflush valve for ten seconds then close it, my new Baracuda sweeper goes to work like a champion but after a couple of minutes is goes limp because there is no more suction. I've "bumped" the backflush a couple of times just to verify the results. Since open the backflush valve does soemting to the pressure, do I need to replace the pressure valve on the top of the Hatward DE Canister? Any other suggestions? Thank you in advance! Morris

@SPL 9 лет назад

Morris Lutes D.E. seems to be leaking in from somewhere - but it sounds like you changed all of the parts.

@esclavosoy1 9 лет назад

Morris Lutes I'm a hope DIYer and I'm trying to solve this issue myself. I know the grids are bad on mine. I read somewhere that if you don't have enough DE you will leak it. For 60 sqft you need to add 7.5 lbs of DE. Don't be afraid of adding too much. 7.5lbs of DE may seem like a whole lot of DE. Let us know if that helps.

@morrislutes2158 9 лет назад

Swimming Pool Tips, Reviews & How To -MrDgvb1 I changed the DE Elbow O-ring. I had taken the filters out several time s and stretched it Way out of shape! I had my water tested and even though I had 6 lbs of granular chlorine and 3 lbs of shock, there was ZERO free chlorine available! The calcium was 800 (s/b 2-300) and my TDS was over 500. I drained half the pool into the landscaping and refilled.Looking good! It's a 30year old 16,000 in ground pool. The skimmer line doesn't work but the vacuum works fine now. I'm taking my water to get tested again later today. I guess as a newbie pool owner I have a lot to learn! Thank you again for your help and your informative videos!

@stuartmaggs 11 месяцев назад

Great video but couldn't see the generic O'ring part number for the outlet tube. Could you please confirm the part.

@SPL 11 лет назад

Replace all eight. You can buy them in a "kit" all eight grids in one box a little cheaper than individually. I filmed replacing all eight grids for an FNS Plus but haven't had time to build it yet, sorry.

@andrewhart4539 6 лет назад

I have a Jandy DEV-60 and two of the manifolds have cracked on top in the same place, which it seems to do if you let it run dirty with the pressure too high. If that happens, you have to replace the manifold. The other thing I missed the first time around was the O-ring on the upright return pipe that the manifold fits on. I would always have that o-ring on hand.

@SPL 6 лет назад

That is a known defect of the Jandy top Manifold. I switch all of mine over to the Hayward top manifold and it holds up much better, The Hayward one fits on their nicely.

@birther1968 5 лет назад

Between pull the filter apart, I had an idea to get the DE at the bottom of the filter that can not reached with the nozzle. Would a 1/4 inch 4 foot long PVC pipe with holes and a plug at the bottom. Slide the pipe up and down and get the thick stuff at the bottom and flush it out the bottom. I hate trying to put the grid of filter back together every DE flush. DO you think this would work??

@billandersen565 11 лет назад

that was was was a very helpful and clearly to the point video. thanks for not over explaining every thing like ever other help video. Nice Job. first one that i watched to completion.

@issamabdalla1819 11 лет назад

So this is my problem: I have. A hayward 36 sq ft filter, we had problems with the grids so we bought new ones. We installed the new ones, and somehow, the filter doesn't have d.e in it after taking it apart! There was no d.e coming out of the return lines. Maybe there was when we first turn the pump on, but not afterwards

@rleader1 Год назад

Thanks for the videos. I've watched many of them. I got a new rod and lock nuts for my jandy dev 60 filter. What's the best way to replace the old one? Any tricks? How do I know how far it should stick up? Does 1 nut go on either side of the black base? My old one is "rigged" and incorrect. Thanks in advance! Ron

@SPL Год назад

I've got this video that might help ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-ABh7Gr5OmkQ.html

@issamabdalla1819 11 лет назад

And so we turn our pump, water flow is good, one hour later, pressure is 5-7 pounds higher (starts at 18 and stops at 24 or 25), and the return shoots out very little water, which means the filter is clogged. How can the filter be clogged with no d.e? You may say that the grids need to be acid washed but I'm telling you're just bought the grids.

@utopiaharley 11 лет назад

Thanks for posting.....very helpful! I need the top manifold... your video helped !

@erickrhernandez1451 Год назад

Regarding the amount of DE…..I was told that the size of the sq. Ft determine the amount of DE. For example: 36 sq. Ft =4lbs of DE. 48 so. Ft= 5 lbs of DE. So who is right?

@LuciddreamZ1 11 лет назад

Thank you for the quick response. I have 15 by 30 foot pool. 15,000 gallons of water..Am I adding too much D.E? Should I vacuum the pool after putting in the clarifier?

@iv54 11 лет назад

i recently got bought a house with a large inground pool and how often shoud you clean the filters

@croc4872 8 лет назад

I have a fiber glass pentair pool filter and I'm having a back wash problem . the filter is clean and everything but now that I turn it on water comes out from the back wash .

@tdineen12 11 лет назад

Im having the same issue i did everything Jose Cantu did to fix the problem. Yet DE goes back into the pool after a backwash. Im thinking about replacing the multiport valve. I already got a new spider gasket and glued it down. Any other tips?

@tdineen12 11 лет назад

Thanks for your reply. Every time after I backwash and add new DE the entire pool will be covered with DE this is a 60 sq ft filter and a 50000 gallon pool. So far I replaced the top manifold, all 8 grids, stem o-ring on filter, and the spider gasket(glued it down this time). None of that seemed to fix the problem though so I'm confused on what could be. DE only enters the pool after a backwash the entire pool will be coated in DE and a lot of it. Any advice would be appreciated.

@tomkatusa912 6 лет назад

How do I add a drain line to my backwash valve, which is better baracuda 3 or Hayward pool navigator?

@braveheart6850 5 лет назад

Great information. Got a question. I have a Pentair FNS Plus 36. I had DE going into the pool. I replaced the manifold with new grids. Also replaced the spider gasket under diverter valve handle. I added 3.6 cups of DE. I then vacuumed up the DE in the pool in filter mode. I am again getting DE in the pool. Someone said it can happen if there is to much DE in the filter. Is that true?

@SPL 5 лет назад

Maybe but not common. What about the stem o-ring? Also check that the grid are seated properly under the top manifold.

@dustinuherka8833 2 месяца назад

@spl where can I find that o ring you replaced? I need one but am not sure which one to buy. Pentair FNS Plus 36

@luisbaez626 Год назад

I have a serious problem with De in pool. Don’t know what to do anymore. I taken apart the filter and tripled checked and quadrupled checked filter grids and all rubber gaskets all are ok but all my de still ends up in pool. Right befor I replaced my manifold for one of th newer ones and it work and a month later I had the problem. I have. Hayward 36 sq ft filter for 20k pool. Any suggestions ?

@SPL Год назад

Sounds like you have checked everything out. I wonder if it the new manifold.

@MrInerds 11 лет назад

most of my grids are broken should I replace them?

@jcantu40 11 лет назад

I noticed DE leaking into the spa part of my pool, after that my pool pump so i changed the pump an went ahead and changed the grids (pentair fns plus 60) the leaking continued so i changed the top manifold and the o-ring, leaking continued i called a pool guy and he told me he does not know what it could be what can be going on?? need help please!!

@tomkatusa912 6 лет назад

What is,the deal with the breather tube??

@erickrhernandez1451 2 года назад

Love this video. Do you still do it this way?

@SPL 2 года назад

Yes. A tried and true method

@sajuaro 12 лет назад

how did you know the filter had a leak?

@maleko61 3 года назад

Just wondering why you wouldn’t tell your audience that they need to use DE Powder for the Filter when your finished. DR Powder: When diatomaceous earth is introduced into the pool filter system, it coats the filter cloth. As water passes over the filter grids, the DE particles capture even the smallest suspended dirt particles. When cleaning is needed, the water flow is simply reversed

@braveheart6850 5 лет назад

I have an FNS Plus 36 and it says on the label to add 3.6 lbs of DE. Am I missing something?

@SPL 5 лет назад

That would be 6 scoops of the standard DE scoop. Each scoop of dry DE is 1/2 lbs.

@tallen1596 Год назад

Great video!!!!

@dominicnello5556 7 лет назад

I have st35 star de filter can get it to back flush

@altusfirst 11 лет назад

Hi, I recently had someone put a new suction diverter valve and at the time he was doing the plumbing we noticed some D.E. coming out of the main drains (spa, pool) and from the skimmer. What would cause that??

@SPL 11 лет назад

That is normal in any kind of repair. Air will get into the filter and D.E. will evacuate when the water returns through the pipes. Once the repair is done and the system is up and running you can vacuum up the D.E. and that will usually be the last of it. If you notice D.E. after that then their could be an issue, but I think it is just related to the repair.

@altusfirst 11 лет назад

Swimming Pool Tips, Reviews & How To -MrDgvb1 Thanks for the quick reply!! I must tell you that your videos are awesome....they've really help me a lot. About the DE returning the pool, it had never happened until the repair was done and then it happened again while using the hose vacuum in the spa. There skimmer lid looks clear of any bubbles. I was thinking maybe the gravity is pulling the DE back into the pool.

@SPL 11 лет назад

Thanks for the positive feedback! It should only be a temporary. If you continue to see D.E. in the pool then their might be a real problem. Maybe call the repair guy back if this continues.

@flames0360 7 лет назад

Will the bottom 8 hole manifold on a Purex 2048 simply lift out for replacement? Or is there something holding it in place?

@SPL 7 лет назад

After you remove the center rod it will just lift out. It may feel like something is holding it on but there is nothing.

@flames0360 7 лет назад

Thanks for the quick reply. Center rod just screws out?

@SPL 7 лет назад

Yes. It may feel like it doesn't but it screws out. Usually pretty tight with calcium formed on the threads. Use a pair of Channel locks if needed to start it but turning it counter clockwise will get it out. Then just pull off the bottom manifold.

@angela1257 7 лет назад

I am having a problem with the DE getting inside the grids it never coats the outside. Do you have any idea why this is happening? It also throws DE back into my pool.

@SPL 7 лет назад

Sounds like the pool is in backwash mode. What type of filter is it? Brand and model.

@angela1257 7 лет назад

It is a pentair fns plus 36 sqft there is no water coming out from anywhere it when it runs and the push pull valve is all the way up and water runs out of the back was pipe when it is down.

@SPL 7 лет назад

Up is the open position and down is the closed position. It seems to have gotten reversed on you. Maybe send me some photos and I will look at them. swimmingpoollearning@gmail.com

@angela1257 7 лет назад

awesome i will tomorrow when i have some day light thank you!

@analabosky5989 11 лет назад

where do you get the spray lube?

@enufluv 8 лет назад

but now you have D.E. all over your yard that is chalky white by not taking the grids out to carry them to a better spot to wash off

@allim7015 10 лет назад

Hi, I have a Porex Triton Nautilus FNS 36 and I'm having a hard time removing the manifold. Can anyone help please?

@SPL 10 лет назад

Nothing is holding to the grids except maybe calcium build-up so it feels glued on. Just wiggle it around carefully and it will loosen up enough for you to pull it off the grids.

@vinceakawolfepignotti1763 9 лет назад

X w caw s

@SPL 11 лет назад

I recommend to clean it every six months with backwashing in between when needed. I

@medina239ify 9 лет назад

I just picked up a new account and after I Cleaned the filter I noticed all the d.e. returning back to the pool.

@SPL 9 лет назад

+medina239ify Usually a torn grid or a cracked manifold.

@medina239ify 9 лет назад

+Swimming Pool Tips, Reviews & How To -MrDgvb1 ok thanks. do you just change the grid that's ripped or torn or do you go ahead and change all of them?

@SPL 9 лет назад

+medina239ify Depends on how many are ripped. rule of Thumb is that if there are four ripped grids I replace them all. Ordering a kit of 8 grids is cheaper. If it is one or two grids just replace those.

@medina239ify 9 лет назад

+Swimming Pool Tips, Reviews & How To -MrDgvb1 ok thanks David.

@MrInerds 11 лет назад

where?

@LuciddreamZ1 11 лет назад

I have a 15x30 foot pool. 15,000 lbs of water.

@maleko61 3 года назад

My bad u did

@LuciddreamZ1 11 лет назад

I Have a 15 x 30 pool. 15,000 Gallons

@pinkboirichy 7 лет назад

I just replaced my whole DE grid filter and as I am adding DE in the skimmer i notice the returning is shooting DE back in to the pool. What are the other possible issues I should trouble shoot that is causing this problem?

@SPL 7 лет назад

You replaced all 8 grids? Just need clarification.

@pinkboirichy 7 лет назад

yes sir, all 8 grids along with the top manifold as well since there was a few cracks on them.

@SPL 7 лет назад

It could just be residual DE from the old grid assembly. Did it stop after a minute? Or is DE shooting back every time you add DE? The only thing left is that small stem o-ring that the top manifold sets on.

@pinkboirichy 7 лет назад

it did stop after a minute, I tried checking the stem o ring but that thing is a super tight fit on there so I didn't try prying it out to see. I am noticing air bubbles coming in so there's an air leak coming some where as well