If space and piping arrangements allows, you can consider getting a sediment / smaller filter, followed by general 5micron filter for your whole house.

Sediment > 3M AP902; for generally occasional backwashing + longer lasting duration between cartridge replacement

Hi there, no worries, no such thing as noob question. Everyone has to start somewhere.

I believe your question would revolve around:

1. Where to install AP902.
1a. If before pump, enough water flow or not.
1b. If after pump, can it withstand pump pressure or not.

I think its more appropriate to think of it this way. Your reason to install pump is to ensure that water pressure is adequate after the tank (before installing AP902), therefore pump should not
be anywhere near tank (due to electrical wiring or positioning constraints). But you would like to improve water quality.

Hence, I would imagine that your pump is situated near ground level where there is space for installation + electricity.

Based on this assumption, I would install BEFORE the pump. Reason being:

- Gravity would provide enough water flow into AP902, as its 5micron filter (instead of 1micron or lower), so it would still sufficiently filtering impurities without impacting water pressure significantly.

- After the AP902 filters, its beneficial for your water pump as less sediment goes through your pump, improving longevity of your pump.

- Pump will then restore any drop in pressure caused by installing AP902, if any.

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Optimally, I would install BEFORE your water tank, as it also reduces the need to clean the water tank in the long run, but taking into consideration that:

i. It might drop the water pressure beyond adequate level for your tank, it would be a hassle to trial and error to see whether it impacts whether pressure in the first place;

ii. Then you'll also need to clean the tank in order for the concept of cleaner tank to work in the first place, which is then another hassle;

iii. Location and installation of AP902 after sediment filter, before water tank, may not be ideal.

So, in conclusion, so far, based on what I can assume and visualize, best option for you would be to install AFTER water tank, BEFORE water pump.

Hope it helps.