Pentair de quad 100 replacement filters

[I Got This!!!!!!]

Hey Guys,
I see a large range of prices for the de quad filters. Can anyone recommend an affordable aftermarket filter that is reliable? Or a reason not to use an aftermarket? I want to buy an extra set to switch out while I’m cleaning the old ones. Also just incase one fails I’ll have backups. Thanks

 

[mknauss]

I know @JoyfulNoise has your type of filter, let's ask him!

Take a look at Cartridge Set (4PK) Replacement Fits Pentair® Quad DE 100® by Optimum Pool Technologies. They are a reputable vendor. I have no experience on those exact filters. I do use the normal Pentair filters from this site.

 

[JoyfulNoise]

The cartridges are probably the biggest single expense of the filter. If you have to buy all four, it’s a significant fraction of the cost of a new filter. Last time I looked, they were running over $120 per cartridge and im sure the price has gone up.

I would only stick with OEM replacements. If not manufactured with the correct standards and materials, they will fail.

My plan is to get rid of the DE filter and go with a cartridge filter (Clean and Clear).

 

[I Got This!!!!!!]

The cartridges are probably the biggest single expense of the filter. If you have to buy all four, it’s a significant fraction of the cost of a new filter. Last time I looked, they were running over $120 per cartridge and im sure the price has gone up.

I would only stick with OEM replacements. If not manufactured with the correct standards and materials, they will fail.

My plan is to get rid of the DE filter and go with a cartridge filter (Clean and Clear).

Thanks you for the advice.
Could you please let me know what is causing the filter to be coming “unglued or melted”?

 

[I Got This!!!!!!]

See message

 

[JoyfulNoise]

Any chance your filter is plumbed backwards?

Do you have the CORRECT multiport valve for the QuadDE? There is a specific model number for them. The Pentair sand filter MPV and DE MPV look identical except they are not identical internally.

 

[JamesW]

Pictures of the system?

 

[JamesW]

The Pentair sand filter MPV and DE MPV look identical except they are not identical internally.

And, it is confusing because the Quad DE uses the Triton sand filter multiport.

 

[I Got This!!!!!!]

Pictures of the system?

Any chance your filter is plumbed backwards?

Do you have the CORRECT multiport valve for the QuadDE? There is a specific model number for them. The Pentair sand filter MPV and DE MPV look identical except they are not identical internally.

 

[I Got This!!!!!!]

There is two bypasses, one right after the pump. It splits the flow to the filter and the waterfall. The other is just before the heater. The filters seem to be collecting the debris on the outside of cartridges so I think the flow is running in the right direction.

 

[I Got This!!!!!!]

The system it plumbed with all 2” underground and are distributed through 3”manifolds. There is 2 skimmers and the main running back to the system and 3 feeds plus the waterfall and occasional step jets. All are 2” independent home runs.