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Word on Ph for the growers with cold grow rooms.
When I was growing in an outdoor room at the house @FullDuplex was teaching me about PH-ing and bubbling my water. Air pump.
I set up a 10 gallon bin of water...with an air pump in.
PH is affected by heat and light.
If I PH'd the water in the morning...when it had been stood in the dark and the cold overnight..it gave one reading.
If I PH'd the SAME WATER in the afternoon...after daylight and warmth there could be as much as a full PH point difference.
It was the same water.
...two completely different PH readings.
The way I had to work it was i was on 14/10....cold/early winter....so my girls were on the cold reading for the majority of their time..14 hours.
So use the readings from the cold measure period.
Heat and Light affect your water readings.
If you have a PH meter...check it out. Take a cold morning reading...then stand the same water in the light and warmth for a few hours...and retest....
Also... everyone I've seen with the screw adjusted PH meter says they are a PITA to calibrate.
I bought a cheap/generic PH meter that lasted me faithfully for years...but I upgraded for a one recommended by AFN members at the time...cough..cough...
...and it was Rubbish/faulty.....so was the replacement.
Price does not guarantee quality with them.
When I was growing in an outdoor room at the house @FullDuplex was teaching me about PH-ing and bubbling my water. Air pump.
I set up a 10 gallon bin of water...with an air pump in.
PH is affected by heat and light.
If I PH'd the water in the morning...when it had been stood in the dark and the cold overnight..it gave one reading.
If I PH'd the SAME WATER in the afternoon...after daylight and warmth there could be as much as a full PH point difference.
It was the same water.
...two completely different PH readings.The way I had to work it was i was on 14/10....cold/early winter....so my girls were on the cold reading for the majority of their time..14 hours.
So use the readings from the cold measure period.
Heat and Light affect your water readings.
If you have a PH meter...check it out. Take a cold morning reading...then stand the same water in the light and warmth for a few hours...and retest....
Also... everyone I've seen with the screw adjusted PH meter says they are a PITA to calibrate.
I bought a cheap/generic PH meter that lasted me faithfully for years...but I upgraded for a one recommended by AFN members at the time...cough..cough...
...and it was Rubbish/faulty.....so was the replacement.Price does not guarantee quality with them.
... I've got the coffee on if you want a cup.......
... we've been shopping and I haven't warmed back up yet......
