Question 1

Can I do a light santization of system with new filters/membrane in place without injuring the new membrane?

Accepted Answer

It is highly recommended that your system be sanitized each year.

Close the shut-off valve that controls the flow to the system.
Open the faucet where the filtered water comes out to relief the pressure.
Loosen filter housings either by hand or with a housing wrench. Be careful to keep filter housing upright as it is full of water.
Remove all housings and cartridges.
Notice the O-rings in the filter housings. Some manufacturers recommend changing o-rings each year. We have not found this to be necessary, but having replacement o-rings on hand is always a good idea. Remove the o-rings so they, and their groove, can be wiped clean. Replace o-rings in groove making sure they are properly seated. A positive seal will not be possible if the O-ring is missing or not seated properly.
Inspect old filter cartridges for excessive sediment build-up before discarding. If high sediment is detected, you might need to change the cartridges more frequently or consider adding an inexpensive sediment pre-filter cartridge to your system.
Clean filter housings with warm soapy water and a brush. Also clean inside the filter housing caps and rinse.
Prepare a sanitizing solution using 1 gallon of clean water in a clean bucket. Add 1/3 teaspoon of unscented household bleach to the water, Add 1 cup of this sanitizing solution to each filter housing sump (lower part).
Connect housing sumps back together with caps sanitizing solution, but no cartridges.
Open the shut-off valve and allow housings to fill with water.
When water starts to flow out of the faucet, close the faucet.
Allow water and bleach to contact the housings, lines, and faucet for 30 minutes.
After 30 minutes, remove filter housing sumps using procedure described above: shut-off valve, remove housings, and discard sanitizing solution to drain.
Regardless of the current order of your cartridges, when using these cartridges, place the Carbon Block Cartridge (with netting) in the 1st housing & the KDF/GAC Cartridge (with plastic casing) in the 2nd.
Open the valve and run water through the cartridges for 5 minutes to flush & activate the filters.
Close the faucet and check for leaks.

Question 2

Can this be used for any reverse osmosis system?

Accepted Answer

Pretty much.  There are a few proprietary systems but that's like a rate 3% of the market share

Question 3

How is the flow rate of this element? I have one from greatwell, with terrible flow rate.

Accepted Answer

Flow rate depends on the pressure. I haven't measured it, but for my use I have a decent rate for about half a year. For me decent is ~5-10L/h.

Question 4

Will this work for whirlpool wher12 systems?

Accepted Answer

We bought a existing home and I am in the process of changing out the filters and I saw this brand (reverse osmosis element model no: 7262598 Dow RO flat sheet), so yes this works with WHER 12 system.

Material	Polyamide Thin-Film Composite
Item Weight	0.42 Pounds
External Testing Certification	NSF
Product Benefits	Removes impurities and reduces total dissolved solids (TDS) in water
Brand	Dow Filmtec
UPC	784497971547 799705704145 789322554186 115971042192 132017518435 163120792030 732454660423 885300823753 809390006780 807032976101 851905124717 182682390072 808112764199 806294987948 700999871727
Global Trade Identification Number	00132017518435
Unit Count	1.0 Count
Number of Items	1
Manufacturer	Dow Filmtec
Part Number	FILMTEC-TW30-1812-36
Item Weight	6.7 ounces
Product Dimensions	11.75 x 1.75 x 1.75 inches
Item model number	FILMTEC-TW30-1812-36
Is Discontinued By Manufacturer	No
Size	1 Count (Pack of 1)
Color	Blue
Item Package Quantity	1
Number Of Pieces	1
Temperature Range	113 Degrees Fahrenheit
Water Consumption	36 Gallons
Number of Handles	1
Included Components	membrane
Batteries Included?	No
Batteries Required?	No

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Dow Filmtec TW30-1812-36 Reverse Osmosis Membrane

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