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Does anybody use an automatic waterchange system?

foxfish

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11 Oct 2009
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Guernsey
Yes lots of folk use or have at least tried an auto water change.
So much will depend on your personal circumstances, tank setup and position …..
For instance where is the nearest drain, do you have auto top up fitted, do you use water straight from the tap or through a filter, does you tank have a sump, how big is the tank etc etc…….
Then there is the definition of auto water change, would this be a permanent drip system of a once a week 50% change ?
 

john6

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23 Mar 2022
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Scunthorpe
Yes lots of folk use or have at least tried an auto water change.
So much will depend on your personal circumstances, tank setup and position …..
For instance where is the nearest drain, do you have auto top up fitted, do you use water straight from the tap or through a filter, does you tank have a sump, how big is the tank etc etc…….
Then there is the definition of auto water change, would this be a permanent drip system of a once a week 50% change ?

I will be converting my red sea reefer 425xl tank to a planted tank soon, I had an Apex which i never got round to using so will utilise it on my new setup.
I can drill a hole in the wall to take waste water to drain or rainwater drum and run a line from my water bucket to my sump. I do have an auto top up.
I plan to use once a week 50% water change as will be going ei dosing.
I am more trying to learn what fail safes i need to put in place and what system is best as i dont really want to spend £370 on a neptune dos if i dont have to.
 

fredi

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25 Feb 2013
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69
I used to use constant water change, using a peristaltic pump, i drilled a hole in the end of the tank at the water level, fitted a 6mm push fit bulkhead fitting., 6mm to drain and there you go
 

fredi

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25 Feb 2013
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69
If you are doing this, bear in mind that if water is stored in plastic containers, phthalates will be released into the water
Best to use another glass tank, imho
 

john6

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If you are doing this, bear in mind that if water is stored in plastic containers, phthalates will be released into the water
Best to use another glass tank, imho
What do you mean?
I used to store ro water for my reef tank for months at a time in a big 500 litre plastic container ready to mix for saltwater with no problems.
 

seedoubleyou

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29 Mar 2022
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491
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Windsor
What do you mean?
I used to store ro water for my reef tank for months at a time in a big 500 litre plastic container ready to mix for saltwater with no problems.
He’s right in what he’s saying mate, I saw it all too often on Ultimate reef where peoples RO TDS has increased due to prolonged storage.

I myself never had any issue like you.

I use to run the Auto aqua smart AWC, it’s actually a really good bit of equipment, but I eventually decided you have to empty the waste water at some point anyway (unless you can run into a drain).
I don’t think it’s overly necessary on a freshwater tank (IMO).
It was great on a reef tank as it really helped with stability doing small frequent changes.
 

john6

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He’s right in what he’s saying mate, I saw it all too often on Ultimate reef where peoples RO TDS has increased due to prolonged storage.

I myself never had any issue like you.

I use to run the Auto aqua smart AWC, it’s actually a really good bit of equipment, but I eventually decided you have to empty the waste water at some point anyway (unless you can run into a drain).
I don’t think it’s overly necessary on a freshwater tank (IMO).
It was great on a reef tank as it really helped with stability doing small frequent changes.
I did look at the aqua smart and it had some good reviews.
Maybe i need get reefing out of my head, when i come up with a problem i think to my self what would i do in my reef tank and try to apply it to freshwater, and then people tell me it doesnt work or is not necessary on a freshwater tank.
I might skip the AWC and spend saved money on plants.
My mantra for the week is ' It is NOT A REEF TANK.'
 

JoshP12

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8 Dec 2019
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748
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Canada
I rigged my own with an old canister filter and a pump in a bin in a back room to refill. It was on automated “timers” - also use an ATO in general.

It worked and ran daily 20s — was awesome.

Once (out of ~5 months) it didn’t disengage and it overfilled … while I was out - wife caught it though.

Ended up installing wifi cameras to watch it haha.

If I was to do it again, I’d be spending money to get fully automated sensors on the top brand - like a Tunze (if they or an equivalent make one).
 

fredi

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25 Feb 2013
Messages
69
What do you mean?
I used to store ro water for my reef tank for months at a time in a big 500 litre plastic container ready to mix for saltwater with no problems.
Plastic containers leech phthalates, the rate at which this happens is variable, overnight storage is not a problem
Weeks on end will definitely show phthalates, if tested. If that’s a problem or nothing to be concerned about, is another matter, personally i would not use plastic containers for medium-long term storage
 

Nick potts

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25 Sep 2014
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Torbay
I don’t think it’s overly necessary on a freshwater tank (IMO).
It was great on a reef tank as it really helped with stability doing small frequent changes.
Definitely not needed, but nice to have :) and I would argue that the stability aspect is a very good secondary reason to have one, while not as important as marine it can only be a good thing.
 

seedoubleyou

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29 Mar 2022
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491
Location
Windsor
Definitely not needed, but nice to have :) and I would argue that the stability aspect is a very good secondary reason to have one, while not as important as marine it can only be a good thing.
Totally agree stability is important in any aquarium.
Freshwater water changes are just a lot less work than in comparison to a reef tank.
I think you’ve hit the nail on the head with “nice to have”, and perhaps it’s something to help really fine tune a setup once everything else in place.
 
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