How to keep stock tank water clean & fresh??

[corygnc]

Any suggestions on how I can keep the water in a 500 gallon stock tank clean and fresh over the summer. The property I bought has a hydrant they used for cattle in the center of the property and now that there is no cattle, I buried the tank and have put a float on the tank and want to make sure the water is fresh and clean.
Any ideas?
Thanks!

[Red Lion]

If you had some way to aggitated or circulate the water, it would help.

[Howler]

Yip, circulate/airriate it and add a small amount of chlorine!

[SomersetArchery]

My grandpa used to keep a couple of small catfish or bullheads in his horse tanks. They eat any insects/larva and small critters that show up.

You would think that the water would taste "fishy" but he claimed that it didn't.

Kev

[nctaxi]

In the old well houses, they kept a constant small flow of water and kept crappie in the water.