High Phosphates in Rinsed Sand

[TimT]

Hi,

You can use Foz Down to neutralize the Phosphate. The filter can remove any phosphate that precipitates out. You will need to let the sand release more phosphates and then use Foz Down to remove that as well. Eventually all the phosphate will come out of the sand.

If you wish to try Foz Down I can arrange to get you some since I produce it.

Cheers,
Tim