I have developed a concern about our sump waster water. Previously the sump hole was in dirt only so I bought an abs sump and poured concrete around it.

We put our dumped yeast, hops and spent grain into 55gal drums which are picked up by a friend who owns a septic pumping company (we are a nano brewery so we dont have enough spent grain to give out to farmers).

BUT some hops, yeast and spent grain do find its way into that sump. My concern is the stagnant water in that sump, although we make sure it is closed to empty when leaving the brewery, there is always about 5 inches at the bottom. I'm sure bacteria can grow in there and create an issues.

I started adding bleach to the sump after a wash or brew.Is adding bleach to the sump a correct practice preventing any issues down the road?

For those who have floor grates, do you remove the grates after each brew and clean it up?

Any suggestions or feedback will be well appreciated!

Thanks!