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-   -   DIY DI Unit by Sealife (http://www.arofanatics.com/forums/showthread.php?t=166483)

Ekia 25-01-2005 07:09 PM

DIY DI Unit by Sealife
 
Recommended by one of the reefers here a few months back... can't remember his nick.. if you know who you are... own up :p

Anyway, have been using this DI unit for all my top-up water for the past few days and the diatoms miraculously disappeared. Used to have to use the magnetic cleaner to clean the glass every 2 days as the whole glass is covered with diatoms. But since using DI water for top-up since Saturday, very little/no diatoms observed on the glass. Will monitor the situation and update this thread in a few weeks time.

Cost: $75
Replacement cartridge: $50 including installation
Lifespan: 1300l

Overall, if this DI unit really does its job well... I think its actually quite a worthwhile investment. Lets see if my green hair algae will go away in a few months time ;)

nicky30092002 25-01-2005 07:18 PM

Oh please show us/me a pic of what U talking abt .. me always can't get term/name correct .. :P .. thanks ..


di is using resin right?

nim75sg 25-01-2005 07:20 PM

$75 is a good investment ....

Pic please so that we can see it ....

Ekia 25-01-2005 09:27 PM

too bad... camera spoil.. can't take a picture :(
Its actually a PVC pipe with the resin inside... the water will run into the pipe and out from the other end... a simple DIY product.

nim75sg 25-01-2005 09:34 PM

Can't visualize leh ....

Does it operates like a FR but with resin in?

decentkid 25-01-2005 09:36 PM

i have it...been using it since day one...want me to take a pic?? :p :p

nim75sg 25-01-2005 09:45 PM

Decentkid ...... pls post a pic.

Ekia 25-01-2005 09:45 PM

Quote:

Originally Posted by decentkid
i have it...been using it since day one...want me to take a pic?? :p :p

yes.. take a picture of it for the benefit of the rest... no wonder u complain to me that u got no algae for your tangs to eat!!!! :p

decentkid 25-01-2005 10:21 PM

1 Attachment(s)
here it is

nim75sg 25-01-2005 10:27 PM

That means still need a small pump to feed this unit ....

So the replaceable cartridge is the long pvc hosing or the two red ends?

decentkid 25-01-2005 10:29 PM

Quote:

Originally Posted by nim75sg
That means still need a small pump to feed this unit ....

So the replaceable cartridge is the long pvc hosing or the two red ends?

no need pump...fix your pipe directly to it..the red part is the tape to prevent leakage...the cartridge is the whole pvc hosing...when u change...sam will pass u another DI unit...as in a new PVC hosing and thats all...

Ekia 25-01-2005 10:31 PM

Quote:

Originally Posted by nim75sg
That means still need a small pump to feed this unit ....

So the replaceable cartridge is the long pvc hosing or the two red ends?

u dun need a pump... just run all your tap water that u need to top-up or change thru this pve pipe and collect the de-ionised water

Just return the pipe to sealife and he will replace a new one for u.... which means he either has one standby in the store or u return the next day to collect it...

nim75sg 25-01-2005 10:35 PM

That's cool.

Are there any indications to alert you that it needs to replace?

If not, how do you know.

decentkid 25-01-2005 10:47 PM

Quote:

Originally Posted by nim75sg
That's cool.

Are there any indications to alert you that it needs to replace?

If not, how do you know.

estimate lor...around 1000L

nim75sg 25-01-2005 11:08 PM

Agar agar not so good unless you test the water using a TDS water quality meter ...

Goh_TM 25-01-2005 11:47 PM

Hi Ken,

Why dun you try TWP? I using that for long time. US product. I think is US. Pharm. Got it from Petmart yrs back.

BOught at $68 or $75. Refill Cart abt $35.

Till I get back my cam, I post the pic also.

The thing will turn purple when it is exhausted.

Cheers!

Goh :)

Selling at
Quote:

Originally Posted by nim75sg
Agar agar not so good unless you test the water using a TDS water quality meter ...


nim75sg 25-01-2005 11:57 PM

Goh .. my brain cells not working ... What is TWP?

Goh_TM 26-01-2005 12:01 AM

Tap Water Purifier

http://www.sgreefclub.com/forum/uplo...1099555847.jpg

monsterz1975 26-01-2005 12:47 AM

Quote:

Originally Posted by Goh_TM

So this things works?

Sotong Ball 26-01-2005 01:22 AM

I used for a yr, so far so good. I change a pail of water bi-weekly and cart lasted for almost 1/2 yr before it get exhausted. The setback is the water flow fm tap to DI need to be slow/low pressure....always forgotten to switch off the tap.

Ekia 26-01-2005 01:24 AM

Jireh selling this at :
Usual price $200 , now offer $180
Replacement Cartridge = $60

here

You sure can get it at your price? If it works and at your price... maybe its more worth it. How much water can eahc cartridge process?

Sotong Ball 26-01-2005 01:36 AM

I don't think it costs that much....I bought fm petmart too. Saw Aqua Star selling almost same price like petmart. It does helps to provide "cleaner" water.

ReDDeviLs 26-01-2005 02:34 AM

wah confirm bo? looks good to have 1.

Maculosus 26-01-2005 10:45 AM

less than $100 can get one, some FW shops selling too.
Ard 6 mth ago I asked a FW shop near Petmart (at the playground), they were selling $90.

nim75sg 26-01-2005 10:46 AM

Goh .. thanks for the tip as I almost place an order for Water General Mfg Co 6 stage RO+DI from Filter Direct at ebay for US$115 excluding shipping of US$80. This works out to be approx S$320.

Total cost of the TWP is about $110 then it is a good buy!

Since the TWP is a proven by Goh & Sotong Ball then will get one from PetMart tomoro as they are closed today.

Also thanks to Sotong Ball for the tip ie having a slow n steady low flowrate from the tap. ;)

Ekia 26-01-2005 10:51 AM

After another incident.... now I really don't trust Jireh..

Anyway... so the TWP can last for abt 1000l as well?

Little_Fish 26-01-2005 10:54 AM

Any other LFS in the west sells it? FW lfs?

Clownfish81 26-01-2005 12:36 PM

how many litres it can support?
any URL to read this prodt up?
anyone used ant TDS meter to test the actual volume span of the device?

Goh_TM 26-01-2005 04:15 PM

NOt sure, but many had been using it for a long time. DO a search on Reefs.org or RC, still have alot of comment. but very old thread i think.

Cheers!

Tigger 26-01-2005 10:40 PM

This TWP thing generate DI water izzit?? Or just purified the water? Thanks

spsman 27-01-2005 01:17 AM

to all bros
 
actually this cartridge filter is pretty similar to those used for the water coolers. except that the water coolers type is more expensive.
the price comes with the membrane used. In fact it is common to use the TFC (thin film composite) to filter tap water before intro to tank.

What Goh had intro is a gd pdt i suppose. i will find out more abt that later.

wlchew 27-01-2005 01:32 AM

I think I come across at C328 too.. ;) ..I thought it meant for FW :p

Sotong Ball 27-01-2005 02:34 AM

Tap Water Filter able to treat approx 200 - 300L only fm my experience. Cost wise in term of amt of water treated, i think RO+DI is more economical, last longer and able to remove almost 100% of impurities and dissolved solid compare to DI only. The setback on RO+DI is huge amt of waste water generated and unable to know when has it exhausted (might release minerals back to water if continue to use). I am thinking of adding only 1 stage of RO(membrane only) to increase the lifespan of DI but waste water is my concern.

Goh_TM 27-01-2005 02:44 AM

1 can pay more to run 2 unit in series. last time read that the americans got good results in running 2.

media exhaust more uniformly

devilfire 27-01-2005 05:37 PM

[QUOTE=Sotong Ball. I am thinking of adding only 1 stage of RO(membrane only) to increase the lifespan of DI but waste water is my concern.[/QUOTE]

wat u mean by 1 stage?

soomin 27-01-2005 11:30 PM

Think you can diy the filter also, read from a diy website, you only need carbon, rowa & poly filter, just let the tap water flow thru it.
BTW, i am using (years ago, bought for my aro at the beginning) the tap water filter mentioned by bro Goh, so far so good.

nicky30092002 28-01-2005 02:44 AM

think hor I MUST go source some Lab grade resin liao ..

this one sound correct? :p
Strong base resins are highly ionized and can be used over the entire pH range. These resins are used in the hydroxide (OH) form for water deionization. They will react with anions in solution and can convert an acid solution to pure water.

Goh_TM 28-01-2005 03:03 AM

Yup, trying to source the resin too. If found, gonna make one using clear PVC & GF piping for fun.

So Monster, find it & u got cheap DIY DI unit. Ken, Ekia u want? Call Monster faster find. haha.

monsterz1975 28-01-2005 03:19 AM

Quote:

Originally Posted by Goh_TM
Yup, trying to source the resin too. If found, gonna make one using clear PVC & GF piping for fun.

So Monster, find it & u got cheap DIY DI unit. Ken, Ekia u want? Call Monster faster find. haha.

Call up liao he say will pass me some sample.;)

piglet_oinkoink 28-01-2005 09:43 AM

Quote:

Call up liao he say will pass me some sample
Great!! :p :p ;)


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