Cleaning DE filter - are the instructions pretty generic, I can't tell what model I have

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H

heckofagator

Bronze Supporter
Oct 6, 2021
139
Tampa, FL
Pool Size
14000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
In our new house, there's an older Stay Rite DE filter which has a pretty high pressure reading. I'd like to backwash and clean it this weekend but I do not know the model number. The stickers on the filter are all faded out. Do any of these models have any particulars that must be followed or is a DE filter a DE filter? I've watched a few YouTube videos and I think it looks pretty straight forward but I just wanted to check before I got too far along and realized I don't have all of the info I needed.

Will I need to guestimate how much DE I need to put back in to recharge?

thanks!
 
Post a photo of the filter and someone may be able to identify it.

It is important to add the proper amount of DE after cleaning. Most DE filters use one pound for each 10 sq/ft. of the surface area of the grids. As an example, mine is an 80 sq/ft. filter and takes 8 pound of DE. If yours is a grid type filter, you can measure the surface area of the grids to get an estimate of the amount DE.

If you've looked at videos and diagrams online, you should be able to handle reassembly with basic DIY skills. Look at parts diagrams online to identify the locations of o-rings and make sure they are present and in good shape. Don't mess around with couplers or external connections if they're not leaking. Use the proper silicone-based pool lube during reassembly. If you run into issues, post for assistance.

Pool Lube - Further Reading

www.troublefreepool.com www.troublefreepool.com
 
Last edited:
thanks all. Filter is 35" tall and about 18-19" in diameter at the locking ring. I can make out a few numbers here and there on the label but nothing that leads me anywhere. Although maybe I see "5.4 lbs"? Would the label tell you how much filter media to add?

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getting closer - thanks guys.

The washed out first pic says "DE" at the very top (I think)

The pump def says System 2 and the measurements are semi close, the in and out plumbing are verticially aligned and different from the PLD70 picture.
The plumbing on the System 3 looks closer, unless the sticker is wrong on ours.

Will keep looking. I do have a backwash valve connected and the std blue hoses (that are all rotted out)
 

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All of the PLD series, including the one I think I have, the PLD36, seem to have a 36 sq foot filter, so 3.5 scoops?

You guys are great
 
www.pentair.com

System:2 PLDE Series Modular D.E. Filters

Sta-Rite delivers the unique benefits of D.E. filtration in a variation of their proven modular media technology. A single replaceable grid delivers water of superior quality without the complex workings of other D.E. filters. This innovative one-piece design is fully backwashable and can be...
www.pentair.com www.pentair.com

Go to this link and download the manual - hopefully that provided the needed info.
My guess is it's a PLDE36 and takes 5.4 lbs of DE for a full disassembly and clean out.
 
My bet is Sta-rite PLM cartridge filter….

www.pentair.com

System 2 Modular Media Filters - PLM Series

Sta-Rite's modular media filtration is the perfect match for both the inground and aboveground pool markets. Advances in media technology and balanced flow design provide dirt-loading capabilities up to 15 times greater than sand filters of equivalent size. Virtually maintenance-free operation...
www.pentair.com www.pentair.com
 
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