Pentair filter 420 vs 520

booboo

0
May 22, 2008
69
Marana AZ
We are getting ready to build a pool with 380 sq. foot surface area, a max depth of 5 feet and a 7"x7" raised spa. Our builder quoted a Pentair clean and clear plus 420 filter. I asked if it would be smart to upgrade to the 520 filter. They told me that the 520 would only give me about a week longer run time between filter cleanings over the 420. Does this sound right?
 
Here's the manual: http://www.pentairpool.com/pdfs/178558MOM.pdf

It looks like the replacement filters for the 420 are a bit cheaper (less material) than the 520 and there appears to be more options on the 420 filters. Did a quick search on google shopping.

520 filters: https://www.google.com/search?q=R173578&ie=utf-8&oe=utf-8#q=R173578&tbs=vw:l,p_ord:p&tbm=shop
420 filters: https://www.google.com/search?q=R17...AcQ_AUoAg#q=R173576&tbs=vw:l,p_ord:p&tbm=shop

There looks to be a $200 dollar difference in housing cost also.

The 420 may be a better overall value.

Here's a similar question with the owner ended up with the 520: http://www.troublefreepool.com/threads/85853-Pentair-CCP420-or-CCP520-for-28-000-pool
 
The 520 will go roughly 24% longer than the 420. How long that is depends on the specific situation, and can vary quit a bit. In a typical case it will be more than a month additional between cleanings, shorter if you have a lot of debris entering the pool, longer if very little falls in the pool.

The larger filter is also just slightly more energy efficient.
 
at 380 sq ft, x 5 ft deep + the spa, im making a best guess that might be about 13K gallons.
I have a CC 420 on 15K gallons and only have to clean my filter once a year and honestly, I could easily stretch that for a couple or 3 more months.

Like others says though, every pool will be a bit different, so your exprience might be a little different.

In any case though, the 420 would be awesome. Dont know that I really see any significant advantage in going bigger. But if you want to, it wont hurt anything. Rule of Thumb on Cartridge filters, is "the bigger the better"

If my guess of the volume is about right, I would expect the cartridges to last for quite a few years.
 
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