Backyard Aquaponics
A place to discuss aquaponics

Yeah I know... but a deal was made long ago when I was younger and more naive... She gets the inside so long as I can do what I want outside and to the outside of the house...
Worse, she remembers that deal...
The only way she forgets is when she's got a heap of cash in her pocket, and well, that has just as negative effect on AP...

cut atleast two of the walls out of the lounge and it becomes defacto outdoors

heheh she did say she wanted to renovate :-)

Sprinklers came on again tonight.
pH before was 7.4 (High Range) or 7.8 (Low Range) - just to ensure that I was not being misled by the end of range issue.

After the sprinklers had been on, the pH was 8.0. I expect that more alkalinity will accumulate as the GB (in the sprinkler spray - the biggest culprit) is flushed by the flood & drain.

I used only 100mL of my dilute acid today and will check pH tomorrow.

tony

Hi Tony, I found that my problems with high pH went away about the same time as nitrite dropped to 0. Maybe a coincidence.
I was adding phosphoric acid to lower pH but had stopped in the week before it happened. I had nitrites for 2 weeks. How long have you found them present?

Water chemistry is a very vast and complicated thing. I don't know exactly but I am sure the sudden pH swing has rather a lot to do with the cycling process.