INSTALL FILTERS IN WHICH ORDER ?

[Ordie]

Installing a whole house well system for 2 adults, containing a Big Blue 2 Stage Filter, FLECK Controlled Whole House Digital Water Softener System - 24K Grains, and UV Sterilizer. Maybe a sediment filter 1st?
In which order should they be installed? Seperate the BIG BLUE filters, or keep together?

Very low Hard Water
Arsenic level is 18 ug/l
Coliform total is 46L MPN/100ml
Iron is .05 mg/l

FLECK Controlled Whole House Digital Water Softener System - 24K Grains https://www.ebay.com/itm/FLECK-Cont...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

UV Sterilizer https://www.ebay.com/itm/Ultraviole...e=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649

20-inch 2 Stage Big Blue Whole House Filter with Carbon & Arsenic Removal Filters CF2-4520-AACB

 

[Reach4]

You did not ask, but if you have a deep well, your coliform positive is likely a result of your sampling technique.

For any bacteria test to be meaningful, you have to follow proper sampling techniques including sterilizing the faucet. If you care about the coliform test results, care needs to be taken in sampling. There are variations on suggested sampling techniques, but they have some other things in common:
https://www.doh.wa.gov/Portals/1/Documents/Pubs/331-225.pdf
https://www.anra.org/divisions/wate...nking_Water_Samples_for_Coliform_Analysis.pdf
https://myhealth.alberta.ca/Alberta/Pages/Bacteria-Testing.aspx
https://www.digbydistrict.ca/559-water-testing-sample-taking-procedure/file.html
https://servitechlabs.com/Services/Water/WaterSamplingProcedures/tabid/128/Default.aspx
These all describe methods to avoid contaminating the sample.

https://terrylove.com/forums/index....izing-extra-attention-to-4-inch-casing.65845/ is my writeup on sanitizing deep bottom-feeding wells. Some aspects could apply to other kinds of wells.

If you persist with the UV, it must go right after a 5 micron or finer filter. Putting that before the softener or after, I am not sure. Whatever you do, you must sanitize the plumbing, including the water heater and all after the UV. Also the softener if the UV is before that. Since chlorine is hard on resin, limit the strength and duration of that. The pipes can take a lot of overkill, so you need less care.

 

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[Ordie]

^

 

[ditttohead]

I would recommend calling the company you bought it from for instructions. Many online sellers are total garbage companies, you will find that out very soon... A Big Blue for arsenic reduction, please review the application pages from Graver. EBCT, flow rates, bed volume capacities should all be carefully considered. https://www.gravertech.com/graver/assets/File/Adsorbents/HMRG.pdf They are the leader in arsenic reduction medias and have the one of the best medias for this application. FYI, a good quality UV bulb costs about the same as your entire UV system. Everything in the system is the lowest priced/quality that can be sourced from the lowest priced companies overseas other than the Fleck valve, assuming it is not a counterfeit. I love the header on their site, "Pentair Fleck Built Whole house..." This system was built by Pentair Fleck? LOL,