Curing a fish pond

uklau

Junior Poster
Sep 11, 2006
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Singapore
Hi Tom, I'm helping a friend of mine to find out how to reduce the pH of his newly built fish pond. The pond was built using the normal brick & cement used in building construction. It had been more than 3 months & the pH remains at around 10. Thanks in advance.
 

Tom Barr

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Jan 23, 2005
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Well cement uses Lime, which will buffer to a pH 10.

He needs to drain it, then add a good pool paint coating over that of a liner.
Reducing pH will eat away the cement.



Regards,
Tom Barr
 

Tom Barr

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Jan 23, 2005
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Typically a marine grade epoxy paint is used or "pool" paint.

Several coats, so it's not that cheap.

Regards,
Tom Barr