RO price what kind

[primetime]

What kind of ro/di unit do you plan on getting?

[chem_fun]

I got a 100 GPD w/ DI, tank, water tap, booster and extra filters. I ordered it from aquasafecanada.

I think that the prices and quality is probably the same from most vendors. Though there are a few extra tweaks depeding on the vendor.

Honestly, I sent e-mails to many of the e-bay vendors asking questions. Aquasafecanada was the ONLY company that sent me an e-mail response. I was also able to call them, since they post their phone number on the e-bay auction.

I was able to talk to Dave and to Ed. I was pleased with the information. Not only was I pleased with the information, but it was also confirmed with the other information that I was able to find on the internet.

The only information that wasn't able to be verifies (and will have to be tested via use) is the question of iron fouling the membrane.

I can't wait till I get it. It was shipped out from BC on the 7th. We'll see how fast UPS is.

I opted to get the 100 GPD even though it has a slightly lower rejection rate than the 75 GPD. If I am going to be refilling my tank at school every year, it is going to take about 26 hours to fill my tank (assuming I only get 50 GPD out of a 100 GPD filter).

Only experience will say, but I'm not counting on getting any more than 50 GPD (temp, TDS, pressure...etc).

[dwall174]

I got the Typhoon & I’m happy with the over-all quality of the unit, However I’m not happy with their replacement filters.

I now get all my replacement filters from Buckeye Field Supply

[jblabs]

Don't diss the eBay vendors. You will find that there are many folks that have units off eBay that range from $90 to $100. My ppm in my tap water is 360, out of the ro it is less than 30 and after DI it is 0 to 1 ppm.

Hmmm should I pay $90 for 0 ppm or $160 for 0 ppm???

[dwall174]

Originally posted by jblabs
My ppm in my tap water is 360, out of the ro it is less than 30 and after DI it is 0 to 1 ppm.

That gives you a rejection rate of only around 91%? Versus 98%~99% of the higher rejection rates with other membranes.

I originally got the standard 100 GPD Typhoon that came with the Tw30-1812-100 membrane which only has a 90% rejection rate. I used the RO/DI unit for about six months & still had a bad hair algae problem & whent throuhg DI filters in about 150 gallons!
My tap water is at 125 TDS, & it has 3.5 mg/l Phosphates & the Silicate was off the scale. After the RO Membrane (before the DI) I still got a reading of over 2 mg/l PO4! at 12 TDS this is what my DI had to remove!

I have since replaced the 100gpd membrane with the high rejection 75gpd membrane, My test readings after the RO with the new membrane are now 0.5 PO4 at 2 TDS & I now get over 400 gallons from my DI versus the 150gal I got before!

Hmmm should I pay $90 for 0 ppm or $160 for 0 ppm???

I would rather spend a little more at first to save money in the long run!

[Bimmer]

I have a Water General from here:
Water General

The one I have has a booster pump. My well PSI is about 40 and I wanted greater efficiency. I also use the RO for my sink and fridge water. I paid around $150 for 85 gpd and pump

I have 375 TDS going in 11 out of the RO 0 out of the DI.

There is no difference between this and any other I looked at, HD, Lowes and water treatment cos. They all us standard filters, and the Dow membrane. The real difference is that they are marketed toward the health conscience home owner rather than the aquarist nad can therefore demnad much higher $$$.

The only thing I didn't really care for was the DI unit. After a few months I replaced it with one that has a replaceable cartridge from buckeyefieldsupply.com

Calvin

[jblabs]

dwall174

I now get over 400 gallons from my DI versus the 150gal I got before

Man that does stink, but I am way past 150 gal and its still pumpin out 0-1 ppm.
As far as the rejection rate note that I said less than 30, it runs from a low sample of 21 to a high of 29. ( 95.5 to 92% rejection rate)

I would rather spend a little more at first to save money in the long run

Time will tell if I am better off in the long run but I am already over 200 gal and still at 0.

[dwall174]

Originally posted by jblabs
Time will tell if I am better off in the long run but I am already over 200 gal and still at 0.

Well that's what counts! as long as you're still getting 0

One of the many factors on deciding which RO/DI is correct for your situation is to know what's in your water supply first. What works for one person might not work for the other!

In my case I found out that our city water is treated with some type of Silicate & Phosphorus acid to treat our water lines for rust & corrosion, That’s the reason for me having the high PO4 & Silicate readings.

[Maron]

I got 100gpd unit on ebay from Aquasafecanada . I cant be happier . Works great , TDS is 3 , and it was one heck of a deal .

[griz]

I got a 100 gpd unit from aquasafecanada on ebay. Ed answered all my questions before hand, unit shipped promptly. Have had it for a litttle while now and am completely satisfied. TDS is 1.

[Jimbob]

Another happy 100 G.P.D. aquasafecanada (ebay guy) customer here. The unit was very inexpensive, puts out water with a T.D.S. of 1, and it works flawlessly. I have had it for over a year now. I change the filter cartridges otu per Ed's recommended schedule. The beauty of it all too is that if you buy the filter cartridges from Ed, each filter change (4 filters total) works out to only about $19!!! Individual filter cartridges can easily cost $19+ localy, so it is way cheaper to buy his replacements, but you could get one local in a pinch.Also, buy the entire case of DI cartridges from him and each new DI cartridge works out to $25. Another fantastic deal!

With shipping, I paid $120 when I bought mine.

[eelman]

If any of you are getting a rejection rate of less than 98% on a new r/o membrane, you have a cheap or not a very good quality membrane. Your better off spending the money on a good membrane the first time. The other problem is that you have no idea the what made it through the membrane. Even at 98%, the 2% that made it past the membrane may be most of the phosphates & nitrates.

[jblabs]

eelman says:

If any of you are getting a rejection rate of less than 98% on a new r/o membrane, you have a cheap or not a very good quality membrane.

Even at 98%, the 2% that made it past the membrane may be most of the phosphates & nitrates.

Thats what the DI is for, the other 2-5%.

If I only had a RO unit I would be very concerned what was getting by the RO. As it is now at 0 ppm after DI, I could care less if it was phosphate, silica , or urine.

[ofblong]

Originally posted by camelot
Water Bills will go up noticably. A RO system only actually uses about 1/3 of the water, the rest goes down the drain as waste. Bummer. I don't have a water bill so it doesn't affect me.

you do have a water bill. it either comes to you in the form of electric bill or a water bill. either way your still paying for it.

[ofblong]

Originally posted by jblabs
eelman says:


Thats what the DI is for, the other 2-5%.

If I only had a RO unit I would be very concerned what was getting by the RO. As it is now at 0 ppm after DI, I could care less if it was phosphate, silica , or urine.

exactly.