New D-D 220 gallon set up

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Ratvan

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Reply #15

Thanks guys.


If i'm honest right now a RO set up doesn't really work due to the time and hassle making up your own. Buying the saltwater and RO in and having it delivered to my door works alongside my family and work commitments.


I'm also concerned with the amount of wastage a RO unit causes especially being on a water meter plus the maintenance and replacement of filters etc.


Are you able to give me any information or a run down on how you create your RO water, how long it takes, amount of wastage, when you add the saltwater, how long you have to leave it before adding it to your tank, making the necessary changes to the salinity if required, how often you need to change your filters, clean out the equipment, had any leaks with it needing to be left on overnight or whilst at work


Right now that all sounds horrendous when i can just pop home and the water will be there and i just need to siphon out the old and replace with the new.


However, if i had to collect the water from the LFS every 2 weeks then i would really be considering it.


I'm not saying its a definite no and i may change my outlook on RO set ups in the future. I have seen on youtube that buying RO and saltwater from LFS is a massive newbie error and you soon change your mind haha

Have a look and see if you have a spotless water near you. If you do sign up for an account they'll give you a £20 freebie. It's really cheap near 0 TDS purified water. Avaliable 24 hrs a day. Love my account.

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Andrew980

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Reply #16

Thank you Ratvan, just checked their site and that sounds amazing. Unfortunately I don’t have one nearby but it states ‘coming soon’. I’ll give them a call to see when that might be.


So looks like I’ll stick with getting from my LFS (depending on their TDS) and then switching to Spotless Water in the future.

A1

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Reply #17

I’ve got a very basic 4 stage set up, and a very basic understanding off it, all I can say is prior to entering the unit my TDS is sky high, on exiting the unit it’s 0

The DI resin is where the magic occurs prior to that chamber TDS is still present after my reading is 0

I produce about 25L in roughly 8 hours ish, don’t quote me but I think you lose roughly 75L for every 25L you produce.. a lot will depend on the pressure as well (I’m not on a meter)

I have an external garden tap that I use and bring the unit in once tanks are full!

It was probably the best thing I ever did getting an RO unit, and my tank is only a Fluval M90 (130L I think) summer time evaporation was crazy!!!

Water quality is bang on now, assisting in beating the GHA 


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Andrew980

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Reply #18

Thank you A1 much appreciated.

That’s my concern with the sheer amount of wasted water as I’m on a water meter, based on your calculation I would waste approx 900 litres a month to make just the saltwater I need. Of course I would need extra RO water to cover evaporation so even more wastage. My wife also has a major problem with wasting water especially in the summer when there may hose pipe bans. If I told her I could be wasting approx 1000 litres a month she’d go nuts haha

I won’t have an open tank but a thin glass cover to reduce evaporation and the chance of coming downstairs to see fish on the floor.

I’m liking the spotless water option in the future.


geordie

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Reply #19

Just had a quick look on their website and for 100 liters a month would cost approx £3.50  seen the unit as its beside motorcycle shop i use in Newcastle. Definately an option for smaller tank owners. Thanks for the heads up.

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Andrew980

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Reply #20

AJM83 (strangely if I used my initials I’d be AJM80)

Just called my LFS and their water TDS ranges from 0-1. If it goes above 1 the system shuts down. They use the same water for their tanks, fish and corals.

I must stress my LFS is not one of those large commercial outlets like Maidenhead Aquatics. It’s a small family run business that only specialise in saltwater. I highly recommend it if you live in the East Anglian region.

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A1

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Reply #21

Just had a quick look on their website and for 100 liters a month would cost approx £3.50  seen the unit as its beside motorcycle shop i use in Newcastle. Definately an option for smaller tank owners. Thanks for the heads up.


Yeah that spotless water recommendation is bang on 3.5p a liter!!! 


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ajm83

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Reply #22

Will do,

Am I correct in thinking most RO units give you 2-4 TDS unless you add additional stages like a DI Resin Cartridge?


Depends on the input water.  Mine is anywhere from 250 - 350 in, and between 5 and 20 out. The rejection rate should be 95%+.

However ideally for a reef with coral/inverts you want zero.
Problem with 1 or 2 ppm is you don't know what's making up those particles.  If it's copper you could have big problems on your hands, for example even a few particles per billion can be fatal to corals :scared:
Last Edit: Jan 23, 2020 9:54:39 am by ajm83

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Andrew980

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Reply #23

Cheers, can you test what the TDS 1 water may have? For example copper.


Fortunately the shop has numerous reef tanks with soft, LPS and possibly SPS corals and they're thriving. i'm happy to use their water until Spotless Water is available in my city.


Please note as this is my first ever saltwater tank i won't be adding SPS corals, especially not until i can use TDS 0 water and have more experience under my belt.
Last Edit: Jan 23, 2020 1:56:55 pm by Andrew980

ajm83

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Reply #24

Not easily without buying a load of test kits or submitting a sample for ICP analysis (£££). That's why it's best to just aim as close to zero as you can.

If the shops displays are good that's a good sign 👍

The reason I'm wary is one of my LFS were selling 'RO' water with a TDS of over 100.

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A1

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Reply #25

Not easily without buying a load of test kits or submitting a sample for ICP analysis (£££). That's why it's best to just aim as close to zero as you can.

If the shops displays are good that's a good sign

The reason I'm wary is one of my LFS were selling 'RO' water with a TDS of over 100.

Similar experience, not far of tap water reading...

You can get a handheld TDS meter relatively cheap which will give you a good indication..


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Ratvan

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Reply #26


Yeah that spotless water recommendation is bang on 3.5p a liter!!! 


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Its my best reefing find so far

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ajm83

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Reply #27

Similar experience, not far of tap water reading...

You can get a handheld TDS meter relatively cheap which will give you a good indication..


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Just noticed you're in Essex too, Swallows?

Andrew980

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Reply #28

Selling RO water at a TDS of 100 is disgusting. Do they make that clear to customers?


I've been told that some shops even sell a differing quality RO water to what they use in their own shop tanks!!!
Last Edit: Jan 23, 2020 9:09:56 pm by Andrew980

Reefermad

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Reply #29

A1 can I ask you mate what 4 stage ro system are you using? Thanks

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