Condo or landed? Your choice is either cartridge system, which filters down to 5 micron or media system, which filters down to 40 micron and requires backwash. PoE can pretty much only remove sediment effectively, unless you want to install 2 stage to remove chlorine (taste and odor) too. Do you already have PoU? This may help determine what kind of PoE you need.

They can "get dirty" quickly not because of the dirt, but because of the poor design (for example if ceramic filter is first in line, it will get blocked within 1-2 month just from slug growing inside). A pre-filter can work, or PoE can work too. You can post here or PM me the details of the system you have now.

Is your only goal to protect your PoU or to have filtered water to showers, washing machines etc?

Yes, quite a big difference, PoE is roughly 1000RM with installation. If you do not absolutely need it, then there is no point to waste money on PoE (given you have good PoU). You can post photos here or Whatsapp to me. We will try to use your case as guide for everyone who is looking or thinking about PoE.

Sorry, missed that post. Just what I thought... Evil ceramic filter. I believe it is GAC+Ceramic, or rather ceramic+GAC, meaning ceramic takes the first hit. And you have a lot of iron in your water...

There are 2 solutions:

1. Pre filter at 5 micron, pleated polyester, washable. But you have a lot of iron and you still have ceramic candle. Ceramic candles rarely last long even with good pre filters, and honestly they do more harm than good.

2. Get rid of evil ceramic. This would mean changing the filtration system, since though your housings are standard size, they require threaded cartridges.

You can try with pre-filter and then, if it doesnt work, you can change the system, though keeping the pre-filter and using it for next system, so can start with 1. If interested, I can PM you my pre-filter solution