Hanna Combo Meter

I just recieved a Hanna pH/EC/temp meter. In the instructions it says to use a few drops of storage solution (HI 70300) in the cap. That product did not come with the meter.

So I'm curious A: what the solution is, and B: is it necessary, and C: are there any substitutes? It seems it's just a pH neutral solution yet it states not to use distilled or de-ionized water.

It also says to clean it monthly with cleaning solution (HI 7061) which also didn't come with the meter so I'm curious if there are substitutes for this which is described on their website as a general purpose cleaner for electrodes.

I have the same one, but I didn't get the instructions with it so didn't know. Needless to say I learned the hard way and had to buy a replacement probe for it, and I got the solutions for it. You do need all 4 of them to keep it working properly. Here is a link to a place that has good prices! http://www.plantlightinghydroponics.com/hanna-test-meter-solutions-c-373_491_693.html

Thanks for the reply. So I need the storage solution, cleaning solution, PH 4 and/or 7 solution, and a TDS solution?

How come there are two PH calibration solutions?

One for ph 7.0 and one for ph 4.0. Those probes are expensive to replace so its worth taking care of.

Yea, but do I need both PH solutions to calibrate the meter? Seems like one would be enough (sorry if this is a dumb question).

You need both PH solutions to calibrate, start with 7 it will flash OK after a little while then it will request 4. You can store it cap off in a glass of tap water and not need the storage solution, but you must keep those probes wet at all times.

I have a 9813-5 and it said not to store in tap water. But it also said not to store it dry and i've been doing that for like 6 months now and havent had an issue going months without calibrating.

And i've read 4.0 calibration solution or 7.0 dripped on a bit of sponge that put at the bottom of the cap.

You dont NEED both ph, but it is recommended. The solutions I get are HI-7004,7007, 7031. And I use their cleaning solution, not sure the # on it.

Oh and don't get other calibration solutions. I got the 1500PPM GH and found out that it doesn't work for the hanna

So I got 5 different solutions. Ph 4, Ph 7, PPM cal, storage solution and cleaning solution. More expense that I was expecting but it seems like it's going to be a good investment.

I've been playing around with my tap water and some bottled spring water. Water from my tap registers 27-28 PPM. Water from my shower which has a carbon filter ment to filter chlorine registers 36-37!!! Apparently the filter is adding something to my water, or the pipes leading to the shower are leeching something. The bottled spring water registers 140.

I'm going to guess at around 30 PPM there's not much point in getting a RO filter?

You can use the ph 7 buffer OR the ph 4 buffer (that you use to calibrate) as your storage solution. Just use a few drops in the cap, using just tap water is going to damage the electrode and buying the storage solution is more money. I have this meter and when I was in at a hydroponics store, they themselves told me not to purchase the storage solution because either buffer would work just fine.

Here is a great online store to get all your calibration, storage and cleaning solutions from and they have free shipping. http://www.eseasongear.com/hahielclsohi.html

there are two solutions because if you do a 2 point calibration the tester is more accurate

oh and dont dare drop it it will break in a heartbeat and the probes are expensive