D.E. filter vs. Sand or cartridge filters

catchyoulater

Active member
Apr 26, 2010
32
West Hollywood, CA
#1
I have a 15'x25' oval pool and it's about 30 years old. It's about time to replace. I am looking at same size pools and they come with filters and pumps. All seem to offer sand filters but I have always had D.E. filters.

Which is better? What are the differences? Thanks for any help on the subject!
 

PSW

TFP Expert
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Feb 13, 2012
728
Phoenix, AZ
#2
A sand filter will filter down to 40 microns, and require back-washing somewhat regularly

A DE filter will filter down to 5 microns, and require back-washing (less often than sand)

A cartridge filter will filter down to 10 microns and cartridges are cleaned manually (no backwashing)
 

catchyoulater

Active member
Apr 26, 2010
32
West Hollywood, CA
#3
blakej said:
A sand filter will filter down to 40 microns, and require back-washing somewhat regularly

A DE filter will filter down to 5 microns, and require back-washing (less often than sand)

A cartridge filter will filter down to 10 microns and cartridges are cleaned manually (no backwashing)
Sounds like a cartridge does the best filtering and the D.E. next best or am I reading this wrong?
 

PSW

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#4
DE filters out the most 'junk.' (based on the lowest micron filtering ability)

Cartridge still do a great job, but not quite as well as DE. They are, however, easiest to clean in my opinion. Some people might disagree, but I would rather hose off a cartridge than backwash and add more DE media or sand.
 

catchyoulater

Active member
Apr 26, 2010
32
West Hollywood, CA
#5
blakej said:
DE filters out the most 'junk.' (based on the lowest micron filtering ability)

Cartridge still do a great job, but not quite as well as DE. They are, however, easiest to clean in my opinion. Some people might disagree, but I would rather hose off a cartridge than backwash and add more DE media or sand.
LOL, I realize I read it wrong -- of course the D.E. filters out the most junk! So I think I'd like to stay away from sand filters. Go with another D.E. or try a cartridge! Yup, I'd rather just hose something off than do all that backwashing and messing around with adding more D.E.

Thanks for the input!
 

Isaac-1

TFP Expert
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May 10, 2010
6,711
SW Louisiana
#6
If you live in an area where water is expensive or use may be restricted during dry seasons, you may want to more strongly consider cartridge filters.

Ike
 

mynewpool

Well-known member
Mar 17, 2010
1,082
Spring, TX
#7
I switched from a DE filter to a cartridge. Now my cartridge is a step up from my DE filter so I am getting more filtration. I have not noticed a difference in clarity since I have switched.
 

PSW

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#8
mynewpool said:
I switched from a DE filter to a cartridge. Now my cartridge is a step up from my DE filter so I am getting more filtration. I have not noticed a difference in clarity since I have switched.
A DE filter will filter our smaller particles than a cartridge filter can..BUT the difference is not usually noticeable to the human eye.
 

mynewpool

Well-known member
Mar 17, 2010
1,082
Spring, TX
#9
blakej said:
mynewpool said:
I switched from a DE filter to a cartridge. Now my cartridge is a step up from my DE filter so I am getting more filtration. I have not noticed a difference in clarity since I have switched.
A DE filter will filter our smaller particles than a cartridge filter can..BUT the difference is not usually noticeable to the human eye.
Yea I know that, but I also went up in size with my cartridge filter so I assume I am getting better filtration, but I could be wrong which would not suprise me haha.
 

Casey

TFP Expert
LifeTime Supporter
Apr 16, 2007
10,516
SW PA
#11
I loved my DE filter and would buy another one in a heart beat over the sand or the cartidge filters. I've never owned a sand or cartridge but I love the DE filter enough to not want anything else. I don't mind the extra work of pouring in DE to reload. Pool Care is dang near non existant here at TFP with the BBB or SWG.
 

mas985

TFP Expert
LifeTime Supporter
May 3, 2007
12,126
Pleasanton, CA
#12
One thing that hasn't been mentioned is that since a cartridge filter does not have a backwash valve, it is also the most energy efficient (i.e. lowest head loss) of all three filters. So the energy factor (gallons/watt-hr) will be higher on a cartridge pool.
 

Beez

LifeTime Supporter
May 19, 2009
785
Dallas, TX
#13
I made peace with my DE filter after switching to cellulose. In the process, I discovered an easy way to clean it. Barb adapter in the drain to hook up a drain hose, then spray off the grids directly within the housing. No disassembly required. Superior filtering + easy maintenance, what's not to love?

Still if I was buying new I would probably choose cart...
 

catchyoulater

Active member
Apr 26, 2010
32
West Hollywood, CA
#14
mas985 said:
One thing that hasn't been mentioned is that since a cartridge filter does not have a backwash valve, it is also the most energy efficient (i.e. lowest head loss) of all three filters. So the energy factor (gallons/watt-hr) will be higher on a cartridge pool.
Considering how high our electric is in Los Angeles, I could use the more energy efficient cartridge! I do love the D.E. filter, but again, never had anything else!
 

Stanski

New member
Jul 21, 2014
1
Palm Coast, FL
#15
Sounds like cartridge is the way to go. I won't miss having to backwash and replace the D.E. that's for sure. They sound a lot easier to clean!
I've owned a Pentair cartridge filter for 7 years. You need to remove the filter once a month and spray it with your garden hose. Once a year you will need to buy a new filter. Depending on size mine cost me between $75-$100 each year !