Portable ro water filters - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 09-09-2015, 04:20 PM Thread Starter
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Portable ro water filters

Looking for a portable ro water filter to use for my shrimp tank. One that would hook up to my bathroom faucet. Any suggestions of any under 100 dollars. The one I have you can not get the replacement filter for it anymore.


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post #2 of 8 (permalink) Old 09-09-2015, 04:54 PM
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No idea on shrimp care, but I've been using this for a couple of months happily:
http://www.aquasafecanada.com/produc...on-system.html
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post #3 of 8 (permalink) Old 09-09-2015, 06:48 PM
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You don't really need some special portable RO unit - pretty much any regular RO system will work with faucet - you'll just need to buy a faucet adapter. Everybody offers it as an option (and some systems have it bundled by default). Standard RO system means that any standard filter or membrane will fit and you'll not need to search for some special components and end up in your current situation.

I doubt you'll be able to find a good one under 100 dollars though, it'll cost a bit more. For example, this system: http://www.buckeyehydro.com/premium-ro-systems/ and faucet adapter kit from here: http://www.buckeyehydro.com/feedwater-fittings/
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post #4 of 8 (permalink) Old 09-09-2015, 08:17 PM
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Depends what the criteria for "good" is. My ~$75 option above produces 2-5 TDS water from 250 TDS water. Not sure what the goal is for shrimp though.
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post #5 of 8 (permalink) Old 09-10-2015, 04:04 AM Thread Starter
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What does everybody think about this one RO Buddie 3-Stage RO System - 50 GPD
60 bucks


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post #6 of 8 (permalink) Old 09-10-2015, 04:06 AM
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Question is - for how long? This system comes with rough 5 micron filters (bad for RO membrane life span) of a very low capacity (1500 gallons). Filters are also not of a standard size, so your replacement choices will be limited. They are also horizontally oriented that AFAIK is also not very good (vertical orientation distributes water flow across the filter better).

The system I pointed out has 1 micron sediment filter and 0.5 micron carbon - rated for 20000 gallons. And they are standard size filters - you can buy them anywhere. And it has a pressure gauge - without it you'll never be able to tell under what conditions your membrane is operating and are filters clogged or not yet.

The same supplier (BuckEye Hydro) also has cheaper RO systems: http://www.buckeyehydro.com/value-ro-system/ Trade-off is pretty much the same: no pressure gauge, more rough filters (5 micron) with less capacity (6000 gallons). Also doesn't include a flush valve and filter housings are not transparent. At least filters are standard.

So, basically, yes, you can pay less upfront, but you'll end up with higher maintenance cost. And, potentially, with "the one I have you can not get the replacement filter for it anymore".
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post #7 of 8 (permalink) Old 09-10-2015, 04:18 AM
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RO Buddie seems to be very similar to the unit from Aquasafe except it doesn't have a flush valve.
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post #8 of 8 (permalink) Old 09-10-2015, 04:13 PM
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Bear in mind that the small filters with small and custom cartridges cost more for replacements (per gallon, maybe even per filter). Depending on how much you are producing, the full size 10" filters are much easier to buy and cheap.

I just mounted mine on a board with all the components, strap the tubes up in velcro, and stick it in my garage when not in use. It's not cute or particularly convenient to move around, but it is cheap and produces a lot of water. It's an off brand system with Spectrapure filters and media (they make great stuff, but they over-charge for their systems IMO).

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