My pond dried up in the draught last summer, I drilled a well, 335', and have filled my pond with the help of Mother Nature this Winter and Spring. My pond is about 1/2 acre, about 646,000 g's., and I top it off every third day with about 14kg's. While looking at a glass of pond water yesterday I noticed a slight yellowish cast to the water, I have also observed on my filler nozzle and stand pipe from the well, a yellow deposit. I have not had the well tested as it is for the pond and irrigation, nor have I tested the pond water. All life in the pond seems to be doing well, fish are eating good, no signs of distress. Pond nutrients seem to be in control, some vegetation, and a litttle FA but not bad. I will test as soon as possible, but until then does anyone have any ideas what mineral or element yellow represents?

Last edited by budster; 05/05/12 12:21 PM.