Adjusted Pond’s pH & Alkalinity

Pond

This post is for multiple dates as the lime was thrown with the help of the wind on various days. Day 1 was 2/1/2021.

  • One ton of finely ground agricultural limestone will raise the pH of one surface-acre by one pH unit. From Florida Fish & Wildlife here.

Therefore, for our 1/2-acre pond to raise the pH to 6.7, we need to spread 1/2 ton of standard ag lime.

The finely ground Ashville Pelletized lime with its 93% RNV was thrown. Adjusting for the 93% RNV the quantity of lime needed would be reduced by 33%. Only 16 40-lb sacks are needed.


2/1/2021 – The 15-20 MPH wind from the north helped blow 80 lbs. south from the north shore in the 2 to 10 o’clock area–with due north being 12 o’clock. It did not reach the center of the pond.

2/24/2021 – 5-10 MPH wind from the south helped spread 80 lbs (2 sacks) of pelleted lime on the south side; i.e. from 4 to 8 o’clock.

2/18/2021 – 10 MPH  wind from the south helped spread 80 lbs (2 sacks) of pelleted lime on the south side; i.e. from 4 to 8 o’clock.

3/6/2021 – Threw 40 lbs of lime from the east bank to treat the triangular area between the previous applications on the north and south sides.

See pH, alkalinity, and hardness tests between these applications. pH has risen from 6.2 to 6.8 and the others also better.

3/17/2021 – Threw 40 lbs. from the south bank while 15-25 MPH winds helped blow it to the center. Most was thrown as far out as possible.

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