Inline water filters

I agree with Frank, I fitted one of these to the hose I use to fill the tanks on my caravan and I have used some pretty suss water at times. The water coming from the filter is always clear and sweet. A little tip when doing this is to reverse the filter on the hose and flush out using the water from your tank, doesn't need much water, this prevents the build-up of pollution in the filter. Peter 1

Sadly you have been reading and believing way too much advertising.
If you think any inline filter at the flow rates you are talking about will improve water quality you are living in fairy fantasy land. A filter of that type can never clear turbidity from water, or make water 'sweet'. It is a technical impossibility.

Water filters if you read the specifications require reasonably slow flow rates. To get the best out of the filter you are better off just filtering your drinking and cooking water through a separate tap. Your cartridge will also last longer.

I only use this filter for Drinking and cooking water. Although it is meant as an under sink filter, you will see I said I have plumbed it so it connects straight to a tap and just fill my pots and/or drinking water containers from it.

You would still be well advised to use the Karcher/Gerni type filter in my previous post. You will Unpleasantly surprised how much muck it will catch at times. It is the muck, sand and rust that gets into the tanks and stuffs up the water pumps, or blocks the pre-screen filters on the water pumps. The issue is the pre-screen filters are not really fine enough.
Yes, the quality of water in in rural towns has improved substantially over the years. Few towns still have very hard water that doesn't make good tea or coffee, and then just buy one of the 10L water containers. If I know I am heading to a poor water area, take one or two with me. I don't like buying them not because of the money, is because of the plastic. You know only too well it won't get recycled out there and end up in land fill. What I have been doing is cutting the tops off and taking them home to turn into storage bins in for my shed shelves.

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Pete, after agreeing with your expression on temperature and bacterial growth I decided to search on that subject. Now my head hurts. It seems that there is a bacteria for every temperature from sub-zero to superheated. I may adopt your method of adding chlorine to our water in general, but I think that I will drink only bottled beer to be safe and sure. lol

Actually, our setup is three totally separated tanks of 40L each and we seem able to reserve our treated town water for potable use whilst topping up one or two of the tanks with unknown quality. So far so good!

Yes Allan, you are right about the presence of bacteria, but check the rate of growth at various temperatures.
I recall that in the past, the treated town water in the Morgan to Whyalla pipeline in SA has twice been declared unfit to drink. The water gets warm, the chlorine breaks down and bacteria proliferate. The solution has been to increase the chlorine levels so that it remains at reasonable concentrations until the water arrives at the consumption points.
Safe water does not necessarily stay safe, even in the dark and the longer your water supply lasts, the greater the risk.
Chlorine (in the form of liquid swimming pool chlorine or cheap household bleach) is cheap and so are good quality filters.
Cheers,
Peter
OKA196 motorhome

A bit more info on filters.

B.E.S.T. carbon/silver, no micron specification that I can see, - $119 plus each.
https://bestwaterfilters.com.au/

My most recent purchases....
Carbon/silver 0.5um 10" cartridges - $22 each (I paid under $20, but from this supplier).
https://www.ebay.com.au/itm/5x-SILVER-IMPREGNATED-Carbon-Block-Water-Filter-0-5-Mic-10-x-2-5-BCC2510-P5-4-58/231602675504?_trkparms=aid%3D333200%26algo%3DCOMP.MBE%26ao%3D1%26asc%3D61013%26meid%3D0d28b9d74a514b47bfaf09c491aab74f%26pid%3D100008%26rk%3D4%26rkt%3D12%26sd%3D141937541460%26itm%3D231602675504%26pmt%3D1%26noa%3D0%26pg%3D2047675&_trksid=p2047675.c100008.m2219

I purchased 5um 10" sediment filters from Fresh Water Systems in Adelaide for $2 each cash over the counter.

There are other choices for both.

Twin 10"cartridge holders cost under $100. Here is one at $55.
https://www.ebay.com.au/itm/Twin-Undersink-Water-Filter-System-10-x-2-5-Housing-Bracket-Only/113039906546?hash=item1a51b416f2:g:bacAAOSwQz1bFnj~

Cheers,
Peter
OKA196 motorhome

Where did the dodgey water come from? A tank? A rockhole? A stock trough? Etc?

I don't think the B.E.S.T. filter I recommended would be appropriate for billabong water laden with bovine faeces, or similar polluted water sources, if that's the kind of thing you're referring to.

I'm not an expert in survival, but I think you need more than a filter for such polluted sources - ie chemical treatment, which is another layer of discussion.

What were your circumstances when you got infected?

Cheers

Don't think the BEST filter would be good for much to anything at the flow rate. IMHO the worst rip-off going in water filters. The specs are not poor for no good reason.

Only fill my tanks with town treated water. Have a separate pump and filter for shower or clothes washing water if using river/lake/dam water. To wash dishes with river/dam/lake water will always boil the water, and my wife washes the dishes with the boiling water with cotton gloves with rubber gloves over the top. Cannot afford to get sick from crook water while travelling in remote areas. 3 years ago at a remote location in WA traveller had to activate PLB for emergency medical treatment from drinking bad water. If was forced to drink dam/river/Lake water would always give the water a rolling boil. I also carry plain bleach to treat water if necessary. Also use it if the water has high turbidity and let stand overnight to clear for washing clothes or dishes. Only need a small amount and is inactive my morning.
I suppose you could say I am a tad paranoid about drinking/cooking water, but thankfully have never had issues because of the care and attention take to water quality and hygiene. Just as fussy about food storage temperatures in the fridge as food poisoning in a remote location is just as bad.