Pentair CNC+520 questions

Jump to latest Follow Reply
colonelkirby

colonelkirby

Silver Supporter
Mar 20, 2017
166
DFW - Plano, TX
Pool Size
25500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
Opened and cleaned cartridges for the first time the other day. Noticed the following:
  1. One of the bands on one of the cartridges is broken. Its just a little over a year old. Should I be concerned? Seems unlikely that it is a warranty item but I guess is worth the question. It is back in the filter and is running currently. image000001.jpg.jpeg
  2. I am considering purchasing a second set of 4 cartridges and swap in and out when a cleaning is needed. Will the set that is put on the bench be able to be stored without degrading either the plastic or the 'fabric'? I had a DE filter prior to my current filter and the grids didn't do very well in the garage. Both plastic and grid fabric became brittle over time. Should I expect any different behavior from cartridges?
  3. Note the rust on the inside. Should I be concerned? In addition, the 'clip' from 2nd pic has detached from the inner band in the 1st pic. Is that a problem?image000004.jpg.jpegimage000002.jpg.jpeg
  4. What is the purpose of the PVC riser with screen cap? Is it acting as some kind of suction device?
TIA
 

Cartridge Filter Use and Care - Further Reading

www.troublefreepool.com www.troublefreepool.com

Use hot glue to glue broken bands back together. If you clean the filter in the morning, by late afternoon on a hot day, they are dry enough to hot glue the bands. You only need the surface of the pleat and the band to be dry and it really doesn't need to be completely dry either.
 
colonelkirby said:
Opened and cleaned cartridges for the first time the other day. Noticed the following:
  1. One of the bands on one of the cartridges is broken. Its just a little over a year old. Should I be concerned? Seems unlikely that it is a warranty item but I guess is worth the question. It is back in the filter and is running currently.
  2. I am considering purchasing a second set of 4 cartridges and swap in and out when a cleaning is needed. Will the set that is put on the bench be able to be stored without degrading either the plastic or the 'fabric'? I had a DE filter prior to my current filter and the grids didn't do very well in the garage. Both plastic and grid fabric became brittle over time. Should I expect any different behavior from cartridges?
  3. Note the rust on the inside. Should I be concerned? In addition, the 'clip' from 2nd pic has detached from the inner band in the 1st pic. Is that a problem?
  4. What is the purpose of the PVC riser with screen cap? Is it acting as some kind of suction device?
TIA
Click to expand...
Filter bands break sooner or later. You can glue it together, but notice that it has also pulled away from many of the pleats. Doesn't hurt much of anything, especially with a VSP and the water is going slower through the filter.
That portion of the metal band always has some rust on it after the filter is in use a while. The rust is likely from the weld material or the weld. As long as you never remove that band (which there is no reason to do), the clip (connector) coming off won't hurt anything. It makes the manufacture and install of that band easier at the factory.
A second set of cartridges is always a good idea. Keep them out of the Sun. Rotate regularly and no problem. With a VSP, that may only be once a year, especially with a 520. I only clean my 420 once a year.
The PVC riser with the screen cap? Do you mean the air-relief tube and screen? Name says it all.
 
  • Like
Reactions: Newdude
You must log in or register to reply here.
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Top Bottom
Back
Jump to latest Follow Reply