Do you use a Grocheck combo monitor?

I love mine...

This site has them pretty cheap...:o

http://www.gchydro.com/HANNA+GroCheck+Combo+Meter+-+pH+&+TDS+Meter.html

grocom_lg.jpg
 
Bk4mr said:
About how often do you need to replace the electrodes?
Click to expand...

Mine is only 6 months old, but I have had to do NOTHING but plug it in and calibrate it...

Being a continuous meter, meaning it stays submerged constantly, you do not have the probe issues you see people having with the pens... which dry out after every use...

I thing they are a great product, and I would buy it over again for the $170 I paid for it....

Cheers...:o
 
The first couple of years the pH electrodes lasted 1 year. Then I started having trouble with them lasting even 6 months. The warranty was 1 year, so I was getting a new free replacement for each one I bought. That lasted several years. Then Hanna changed the warranty to 6 months.

Now I keep the electrode stored in my top-off water, rather than the res, and they last 10-12 months.

HTH :mrgreen:
 
i don't understand the top off water part i was considering purchasing one because you can just leave the electrodes in the res. I am assuming that every time you want to check your res, you have to put the electrodes in there, like a hand held.
 
:confused:... I wonder if he means just plain water, with no nutes to build up on the probe...:confused:

That is the only thing I can think of....:o
 
i leave mine in my res 24/7...but you should go with the tri meter...then you can monitor your water temps. as well...
 

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Yeah, the top-off water is pH adjusted water that I use to top-off the res each day. I've found that leaving the electrode sitting in that will make it last longer than when left sitting in the res. Yes, the electrodes will reach to each res, and I just put them in it, and in a few seconds the reading is stable.

HTH :mrgreen:
 
Thanks Potroast!!!

I can only assume then that the nutes are responsible for pre-mature probe failure... eh?!?!?

Thanks for the tip! :o

Gypsy...:joint::peace:
 
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