Dual In-Line TDS Meter?

[joefitz]

So is anyone else interested in one of these?

http://www.freshwatersystems.com/products/index/p1228/1228/None/None

If we can get 10 people we save over $15 per unit ($22 vs $37). I don't know if any of our local vendors can get this at a competitive price but if the itnerest is there I'll make sure we go through channels to make sure everyone gets a crack at it.

Joe

[dima96]

i'm in for one

[Lam]

Hmmm, I can't view that link...

[stang8s]

im in for one.

[joefitz]

Sorry about the link...worked in preview but must have gotten messed up in the actual post. I've corrected it and it worked for me so should be all set now.

[Bidadari]

Not to hijack the thread, but what about the handheld one instead?

[joefitz]

I've already got a handheld...I just want the convenience of not having to find it and then take a few measurements... Feel free to start another thread, could be enough interest in each one.

[Ray]

Ah nice I posted that on RC but did not know know if I could say group buy
I am interested in one also

[joefitz]

Yeah, your post on RC was what put it on my list, thanks! :-)

[Paula]

I'm in . ..

[joefitz]

Halfway there...

[Silvio]

What does it test for?

[joefitz]

TDS= Total Dissolved Solids...basically, it measures how "pure" your water is -- in this case, before and after treatment by your RODI unit. Water coming out of a DI stage should read 0 or 1 TDS. Anything higher is an indication that the membranes need to be replaced.

[Lam]

I was going to purchase one exactly like that. Good thing I procrastinated. I'm in for one.

[Scuba_Dave]

Interesting, I've got a hand held unit

[Lam]

Actually....I'm out.

After a little thinking, I've decided this is not a good way to proceed. A hand held will be more versatile if youre interested in measuring RO/DI, or just RO, or tap, or somebody else's water, etc.

I don't know if anyone else is in my shoes, but I figured I'll post my situation if it helps anyone.

[ScottM]

i'm in...... i'm always in.
its a problem.

[JayG]

I could also one of those.

[Sideburns]

Count me in. What number are we up to? It looks like 9, including me.

[joefitz]

I count 8 so far. Almost there. I'm not in a huge rush so I don't mind waiting another week or so to make sure as many people see it as possible.

[sivlem]

Count me in. Just one more needed

[NeO]

I'm in for 1.

I guess we have 10 right?

Gustavo

[marco67]

In the words of a friend with a problem
"i'm in...... i'm always in.
its a problem."

There is way more than $22. worth of cool factor here!

[joefitz]

Ok, well, it looks like we reached the minimum for the discount. I'm still going to give it a few more days to see if anyone else wants in on it. I'll probably place the order on Friday.

[ScottM]

so far its:
1 Dima96
2 Stang8s
3 Joefitz
4 dubge
5 paula
6 Scott merrill
7 JayG
8 Sideburns
9 silvem
10 neo
11 marco67

please respond if your are not able to participate.

[MickyB]

Put me down for 1

[Scuba_Dave]

For $22 I'll take one, have to keep up w/Mr Smith :D
I like the fact of "always" testing as I make water. Much to lazy sometimes to pu that TDS tester & use it

[Deafasa]

Put me down 1. If we ever find a house I'll be getting an RO\DI so I may as well pick up the inline TDS. If I find I don't need it, i can't imagine having a problem selling it for what I am paying for it.

[littlep93056]

Count Me In

[Sideburns]

There is way more than $22. worth of cool factor here!

:)

That is exactly what I thought when I first saw the product, way more impressive than a hand-held model!

[Corwyn]

if it's not too late.
Is it $15 or $22?

( I don't care, just want to know)


Corwyn

[Ray]

it is $22

[Ray]

Save over $15

[ScottM]

anyone else?
going....going.....
Dima96
Stang8s
Joefitz
dubge
paula
Scott merrill
JayG
Sideburns
silvem
neo
marco67
MickyB
Scuba Dave
Defasa
Littlep93056
corwyn

[littlep93056]

16 so far, scott if we get 20 are they cheaper ? ? ?

[Clutchcargo]

Put me in for one.
Where and how will these be distributed?
Thx
Cjh

[joefitz]

Good question. I assumed that I would be ordering them and either distributing them at the next meeting or making them available for pick-up at my place. I'm also ready to order so I expect I'll be doing that today or tomorrow -- if anyone wants to back out, now is the time!

[marco67]

Thanks Joe,
Want some $$$$$ ?

[joefitz]

Ok, well, I just placed the order. I purchased 17 units so hopefully that is the correct amount. :-)

The total came to $382.85 including a $14.33 shipping charge and a $2.00 handling fee (each unit was $21.56). So, that means each person owes me $22.52.

I have a PayPal account, so you can send money to me that way ([email removed]). If you are using PayPal, you'll have to add their fee on to the total. They charge $.30 per transaction plus 2.9% of the payment. That means if you are paying via PayPal you need to send $23.50.

If you don't want to do PayPal then you can pay me upon pickup in cash or a check. I'll let everyone know when they arrive in case you want/need to pick it up from me here instead of at the next meeting.

[sivlem]

Thanks Joe.

[MickyB]

Thanks Joe

[NeO]

You got cash, Thanks Joe.

Gustavo

[Clutchcargo]

Thanks Joe,
I'll give you cash when I see/meet you.
Will you be updating this thread or starting a new one when the TDS guages ship?
Cliff

[joefitz]

I will update this thread when they arrive.

[joefitz]

Just thought I'd give everyone an update...I received notification that the items have shipped. It looks like they are due to arrive on Wednesday/Thursday. I am leaving for a week on Thursday so I will not be available for pick-up -- I may see if I can get Scott to hold them in case somebody needs them prior to the meeting.

I'll post another message when they actually arrive (assuming I'm still here to pick them up).

[Scuba_Dave]

I won't be at the meeting, have to pu later

[littlep93056]

I'll see you at the meeting thanks

[ScottM]

joe,
i'm out of town until monday.
won't be at the meeting but i can hold them if anyone doesn't pick up.

[Deafasa]

It looks like I won't be able to make the meeting, but unless they come in today, it sounds like they won't be available for the meeting anyway.

[joefitz]

The package arrived today, looks like all 17 units are there. I leave for Florida tomorrow so unless someone wants to pick it up tonight, you'll have to wait until I get back on the 27th. I expect to be at the meeting and if I am not, I will make sure somebody who is going will bring the goodies. Cash or check is fine -- the total was posted earlier in this thread. Or, as discussed earlier in this thread, you can pay via credit card (before the meeting) if you have or sign up for a paypal account.

[Moe_K]

The meeting is on the 22nd. You'll still be in FL, yes?

[joefitz]

Oh shoot...for some reason I was thinking it was the 29th. Ugh. Ok, well, hmn...I'll see if I can get them to someone who is going to attend the meeting then.

[Clutchcargo]

Thanks for the update Joe, I'll see you the weekend after you get back.
Cliff

[joefitz]

Karl Wagner has been gracious enough to offer his assistance with distributing the TDS Meters at the meeting on Saturday. For those of you who don't know who Karl is, consider yourself lucky. Most people know him though so ask around and you're sure to find him. Bring cash or a check made out to me (Joseph FitzGerald) -- please try to bring exact change because I doubt Karl will be in a position to make it. If you're paying with cash $22.50 is fine to make things convenient...on the other hand, so is $23 or $25. ;-)

Have fun with them (I still haven't hooked mine up).

[stang8s]

Joe-
I just sent you paypal. Please let karl know im paid for! I wont be at the meeting but will either have someone grab it for me or get it from karl at a later date/time.
thanks!
Jeff

[PenMan]

Thanks for putting this together. These things are cool and we are now watch output with every batch. It is amazing how much the incoming varies from start-up to fresh water! We drop from almost 500 to low 400 range after it has been running for 10-15 minutes. The joys of having your own well.

[stang8s]

Got mine last night from karl. 180 in 0 out. Thanks joe and karl

[Scuba_Dave]

I still need to pu mine

[Ray]

Ya so do I
Who has them and when is a good time to meet up?

[IffersTankSlave]

If there happens to be any left over, let me know. (In case someone changed their mind or whatever).

[sivlem]

Just saw the TDS came in and still interested > when and how can we meet ?

[NeO]

Joe, are you going to be around this weekend?

Gustavo

[Scuba_Dave]

This is something I could pu on the bike. So if someone has them & it will be around this weekend.....let me know

[joefitz]

Hey folks, I am back in town. I am going to make arrangements to pick up the TDS meters from Karl. I'll post again when they are available for pickup.

[Ray]

Joe are you going to the next meeting? If we can not hook up before then can I grab it at the meeting? I can send you the money before hand or give you cash on pick up.
thanks

[joefitz]

Yes, I should be at the next meeting and will bring the meters with me. I'm hoping that everyone will have made arrangements with me prior to that or that they will pick them up at the next meeting.

[ScottM]

joe,
i'll get mine over lunch? :D

[joefitz]

Unfortunately, I can't connect with Karl until Friday (he's traveling) so I won't be able to arrange pickups until after Friday. I work from home so I am available most times on most days. If you aren't going to be at the upcoming meeting, please contact me to make arrangements to pick up your TDS meter. A few people have asked if there are any extras so if you want to back out, let me know and I'll try to arrange an alternative buyer.

I live in Cambridge between Harvard and Central. I'll provide directions to everyone individually, but I'm fairly easy to get to from just about anywhere.

[joefitz]

Scott -- are you going to be up in time for lunch? :-P

[bgywrinkle]

I'm in, if it's still possible to join this buy.

can pick up at meeting, if OK.


Don

[marco67]

Don,
Glad to see you made your way over here!
WELCOME not sure if Joe has any left (they were for pick up last meet) but these are neat toys

Has anyone set there's up yet?
I did and I used it on the incoming and the finish water getting about 780 and 0
That's cool but then I decided "Who cares about the incoming" so I'm changing to after the membrane and the finish water that way you can monitor the condition of the membrane.

[PenMan]

Great idea to check membrane. Good thing that these are push fit and not one time!

[marco67]

BTW the TDS and the rejection rate you could really know exactly what was happening

[joefitz]

For those who don't already know, I am a complete idiot. I'm not going to the next meeting -- I'm in a wedding. :-) Anyway, I will make sure that somebody (Karl Wagner or Scott Merrill...someone) will bring and distribute the TDS meters. I expect to have them available for pickup this Friday, so if you aren't going to the meeting, please contact me and set up a time to pick it up, hopefully before the meeting.

[Scuba_Dave]

I won't be at the meeting, can pu maybe next week?

[joefitz]

Next week is good anytime before Friday. I have a few things that will be scheduled at some point that I'll have to work around but in general I'm available anytime from 8am-midnight. If you give me a day/time I'll try to schedule my meetings around that time if possible.

[joefitz]

Ok, just an FYI that I do have the TDS Meters again. Please post a note to this thread indicating if you are planning to pick the meter up at the next meeting or not. If not, please send me an email to arrange pick-up. If I don't hear from you, I am going to try to see if somebody else is interested in your TDS meter and they'll be up for grabs at the next meeting.

If you are planning on picking up your TDS meter, just send me a day/time that you'd like to do it and I'll let you know if it works. The only time that is definitely out at this point is Tuesday night from 6pm on. Day/night is fine by me. I live in Cambridge a few blocks outside Harvard Square and will provide directions to anyone that needs them. I may also be able to meet people at Skipton's and if there was a large enough group, at Tropic Isle in Framingham.

[bgywrinkle]

joe,

I would like to pick up a TDS meter at the meeting.

Don

[Scuba_Dave]

I work in Wellesley, so if you are going to TI let me know. I can't make the meeting, Monday night is booked, Tues if weather is good we will be at Red Sox Game. That leaves Wed or Thurs?

[cjburden]

if there is an extra TDS meter I could come and pick one up anytime
gonna ned one for my new ro unit and I forgot to order one with it

[Brimc]

I would grab TDS meter if there are extras avaliable.

[JayG]

I sent you a PM a while back letting you know I was going to the meeting and would like to pick up my meter there. Just making sure you're aware I still want the unit I ordered

Thanks you

[Scuba_Dave]

Sent U PM on PU, today or tomorrow after work, or...?? Thanx

[Scuba_Dave]

Thanx Joe, sorry it took so long

[Deafasa]

Thanks again Joe for putting this together.

Jeff

[lactrain]

Just a quick question .... I got a unit with this exact meter on it (originally installed) .... IN is before the RO and OUT is just after the RO .... should I switch the OUT to the position just after the DI (product water) ....

Im sure it will give me a better determination of how pure my source water is BUT will this make it harder to determine when my RO membrane is spent.

Len

[Deafasa]

Why not move the IN to just after the RO and OUT to just after the DI. Do you need to know how bad the incoming source water is?

[lactrain]

Note: The NSF Standard for Percent Rejection is 75%. We recommend replacing the RO membrane once it tests at 80% rejection or lower.

I pulled that quote from the page linked at the begining of the thread .... this is the assumption I was under .... and that in order to determine that the ro membrane was in need of changing this is the math that would need to be done. Based on the before the RO and then the outgoing after the RO

Sure need some insight here ....

[Piscevore]

yeah, you'd be testing the plain old tap water against the RO membrane... before and after...someone was suffering for palyotoxic shock or something

[lactrain]

huh .... not quite the answer i was looking for .... but typical.

[nickoz]

Edit: I should read the whole thread.... dup post..
-------------

I think it would be better to have the Meter-IN on the RO-OUT and the Meter-Out on the DI-OUT. IMO I dont see much value in continuously monitoring your TAP water. You really want to see if your RO and DI outputs TDSs increase to determine if your membranes need to be replaced.

-nick

[lactrain]

Here is why I questioned it ..... Just recently I had to change my first two filters in my 4 stage RO/DI .... my TDS OUT after the RO was reading twice what it normally reads after 6 months of operation.

The Meter on the IN read twice what it normally reads so I took a guess and changed the first two stages and my TDS returned back to normal.

I could tell it wasnt a faulty RO Membrane (Chloromines) by the percentage of TDS it was pulling out.

Is this a true statement .... If my source water rises in TDS will the product water reading after my RO rise as well.

[cjburden]

Don,
Glad to see you made your way over here!
WELCOME not sure if Joe has any left (they were for pick up last meet) but these are neat toys

Has anyone set there's up yet?
I did and I used it on the incoming and the finish water getting about 780 and 0
That's cool but then I decided "Who cares about the incoming" so I'm changing to after the membrane and the finish water that way you can monitor the condition of the membrane.


I was just reading. EPA states the max level of contaminents in secondary drinking water should not exceed 500ppm's. :eek:

That makes the 780 going in seem a bit scary.

[Clutchcargo]

Did anyone check the discrepency between the in and the out before installing this unit on your RODI lines? I poured a glass of tap water and pulled the probs out of the T-Connectors. I got a difference between the two probes of about 15PPM (220ppm In 205ppm Out). My hand held TDS meter also reads about half of what this reads (117ppm). Did anyone else notice any problems or check before installing?
Cliff

[PenMan]

Our dual is running good. I was reading numbers with hand held before adding the dual in line. They are running almost exactly the same as we are getting with the dual output meter. I do keep checking output with the hand held. I keep meaning to change the input to between the R/O and DI elements, but had not done it yet.