TDS Meter

[White Hair]

Well almost had a heart attack this morning, ck’d tank water with new Hone Forest tds meter, tank water showed 7500, rodi water from lfs was 40, tap water was 140 , is the meter bad, does tank water tds rise after a period, what’s going on?

 

[Iamjeff6]

I was under the impression you can’t check tds of tank water.

TDS of the RODI is what I’d be concerned with

 

[Big G]

Well almost had a heart attack this morning, ck’d tank water with new Hone Forest tds meter, tank water showed 7500, rodi water from lfs was 40, tap water was 140 , is the meter bad, does tank water tds rise after a period, what’s going on?

Interesting. I've never bothered to test my tank water. Just did 8900. Lots of salt, etc. in there. But as another noted, you really don't think about the tank water. It's the RODI that matters.

 

[White Hair]

I was under the impression you can’t check tds of tank water.

TDS of the RODI is what I’d be concerned with

Thanks, may be it, still learning

 

[bigdrew]

I’d call your LFS and tell them about the 40. That could be indicative of a problem. I’d be hesitant to use that water until I got an explanation...maybe it has some salt in it already?

As for the tank, I wouldn’t care about that one, so long as TDS from RODI is consistently 0.

 

[White Hair]

I’d call your LFS and tell them about the 40. That could be indicative of a problem. I’d be hesitant to use that water until I got an explanation...maybe it has some salt in it already?

As for the tank, I wouldn’t care about that one, so long as TDS from RODI is consistently 0.

Well almost had a heart attack this morning, ck’d tank water with new Hone Forest tds meter, tank water showed 7500, rodi water from lfs was 40, tap water was 140 , is the meter bad, does tank water tds rise after a period, what’s going on?

Ok, sorry guys, after researching, found you cannot test tds in tank water, will research the ro/di water, thanks

 

[SeaSickness]

Measuring tank TDS is not something you would normally need to do. You would expect the TDS measurement of tank water to be very high given the addition of salt and other elements such as calcium, magnesium, etc.
However your LFS rodi reading of 40 is concerning. This, if accurate, is way too high.

 

[bigdrew]

Ohh, forgot to share this: don’t use your tap water unless you run it through an RODI filter. 140 will cause allllll sorts of issues with your tank.

 

[Crabby48]

I’d call your LFS and tell them about the 40. That could be indicative of a problem. I’d be hesitant to use that water until I got an explanation...maybe it has some salt in it already?

As for the tank, I wouldn’t care about that one, so long as TDS from RODI is consistently 0.

I would like to know the no3 and po4 with there water. I’m thinking they don’t maintain the rodi much

 

[W1ngz]

A little info to help you understand this. A lot of the things we do really are simple, but hampered by acronyms.

TDS is Total Dissolved Solids. In really basic terms, stuff in the water.
RODI is Reverse Osmosis De-Ionized water. Again in really basic terms, NO stuff in that water.

'Stuff' can be dust, dirt, and whatever is on your hands, swizzle sticks, spoons, scoops or pumps that you may be putting into your bucket of nice clean RODI water. More 'stuff' in the water, more the TDS reading goes up. Try and avoid getting 'stuff' in your clean water. Keep the bucket closed, and don't mix in the same bucket you store clean water in.

It's high in the tank because you intentionally dissolve pounds and pounds of salt into water. That's a lot of stuff in the tank water, so the reading is high.

If whatever scoops or things you use are being dipped into your tank are also used in your RODI water bucket, you transfer some stuff from the tank to the RODI water. Maybe you got bad water with stuff in it, but more likely I think you just got some salt building up in it from using a mixing bucket for RODI, a measuring cup or your hands that were in the tank.

 

[White Hair]

Ohh, forgot to share this: don’t use your tap water unless you run it through an RODI filter. 140 will cause allllll sorts of issues with your tank.

never have, never will, thanks