Me every 2 days.
I placed a tooth brush beside the skimmer, every time juz take the brush, 1 round ard the cup can liao...
1 min job, including rinsing the brush.
I find that it improve the performance.
A Drunkard driving a car,was stopped over by a female officer.
"You have the rights to remain silence. Anything you say will be held against you in court." Said the female officer.
Drunkard says ".......t.i.ts...."
9 hrs leh, quite long for UPS to tahan....unless u get the bigger model.
Anyway, aim ya power head towards water surface, alot rippleand splashes, should be okay.
Distill water.
After calibrate, can drink also. My hydro meter always show my SG as normal...when i use a refractometer, shock !
SG exceed alot !
A 2nd hand refractometer is quite affordable.