Cloudy Tank

[DeletedAccount]

I will take my pH probe to school and re-calibrate it. It may be off.

I use Marine Environment Sakt. No one else seems to have this low of pH when they mix it. Honestly, I had not thought of the probe being off. It registers correctly after a few doses of the pH buffer.

I have to calibrate everything tomorrow anyway - before a fun lab we are doing. This will just be one more thing.

Thanks! Off to check the pumps!

[GaryP]

Just for the record, there are 4 things that can cause precipitation of CaCO3.

1. Concentration
2. pH
3. Temperatures
4. Pressure

High concentration and an increase in pressure as you go through the pump impellor is why a blizzard usually starts in the pump and scale formation is most severe there.

Gary