How often do you calibrate your refractormeter??

[shiftline]

Never.. Every once in a while o check it with RO. Never rally seems to change calibration on me

[Reef Pilot]

I checked mine a few times initially, but it never changed, so have not checked it for at least a year now. Maybe I should...

[Madreefer]

Never....I haven't checked salinity in years.

For those of you who do check, what do you use to calibrate? Here in PG we don't have a source of SW supplies.

[lastlight]

this is looking like a new years resolution i can handle...

[whatcaneyedo]

I've been calibrating my Sybon annually for a few years with calibration solution from J&L. It generally doesn't change by much unless I bump or drop it.

[mikellini]

Looks like I'm in the market for a new refractometer. Suggestions?

[Reef Pilot]

Originally Posted by mikellini

Looks like I'm in the market for a new refractometer. Suggestions?

Sybon.