I've been using my water treatment system with H2O2 for about 2 years; and before that I used it with chlorine for about +15 years. I've had occasions where I've had H2S slippage, but this is fast becoming one of my most challenging. I'm looking for advise.
My water treatment consists of adding H2O2 to incoming water, running through a large pressure tank and large pressurized holding tank, then through a 10x54 back washing centaur carbon filter. I have H2S in the incoming water, and the critters that make the H2S also live in the water (hereafter referred to as SRB's). I've sanitized the well in the past, but the SRB's and H2S come back in days. Consequently, I focus on water treatment from the house onwards.
A couple weeks ago, there was H2S slippage. I checked the H2O2 residual entering the carbon filter and it was around 5 ppm, and I bypassed the carbon filter for several days. When I bypassed the carbon filter and sent the H2O2 water throughout the house and the smell went away. That suggested the source of the H2S was the carbon filter itself! I sanitized my entire water system with bleach last week (everything downstream of the well) by passing the carbon filter and running the chlorine throughout the house and letting it sit for 4 to 6 hours. I then back washed the carbon filter with bleach and put it back into service with a large dose of bleach upstream of it. The smell went away for about 3 or 4 days, but it is back. H2O2 residual entering the centaur carbon filter is 25 ppm at the moment.
Several thoughts in my mind. Is there any harm in just by-passing the carbon filter forever? What sort of H2O2 residual can I have before it is harmful to humans, drinking water, septic tank, etc?
If I rebed the carbon filter, is there a filter medium that is less hospitable to SRB's than centaur carbon, but still helps removes residual H2S (there are times when I have 25 ppm residual H2O2, but still get H2S to the carbon filter) and removes residual H2O2.
If I rebed the carbon filter, is there any harm in putting only 1 cu ft of carbon in it as compared to the 1.5 cu ft it can hold? My theory is that I have SRBs living in the filter, and I can't seem to get chlorine or peroxide in sufficient concentrations to them during the back wash to kill them off. However, I don't need much carbon because the H2O2 is already taking care of most of the smell, so perhaps reduce the bed height.
I would appreciate any thoughts.
My water treatment consists of adding H2O2 to incoming water, running through a large pressure tank and large pressurized holding tank, then through a 10x54 back washing centaur carbon filter. I have H2S in the incoming water, and the critters that make the H2S also live in the water (hereafter referred to as SRB's). I've sanitized the well in the past, but the SRB's and H2S come back in days. Consequently, I focus on water treatment from the house onwards.
A couple weeks ago, there was H2S slippage. I checked the H2O2 residual entering the carbon filter and it was around 5 ppm, and I bypassed the carbon filter for several days. When I bypassed the carbon filter and sent the H2O2 water throughout the house and the smell went away. That suggested the source of the H2S was the carbon filter itself! I sanitized my entire water system with bleach last week (everything downstream of the well) by passing the carbon filter and running the chlorine throughout the house and letting it sit for 4 to 6 hours. I then back washed the carbon filter with bleach and put it back into service with a large dose of bleach upstream of it. The smell went away for about 3 or 4 days, but it is back. H2O2 residual entering the centaur carbon filter is 25 ppm at the moment.
Several thoughts in my mind. Is there any harm in just by-passing the carbon filter forever? What sort of H2O2 residual can I have before it is harmful to humans, drinking water, septic tank, etc?
If I rebed the carbon filter, is there a filter medium that is less hospitable to SRB's than centaur carbon, but still helps removes residual H2S (there are times when I have 25 ppm residual H2O2, but still get H2S to the carbon filter) and removes residual H2O2.
If I rebed the carbon filter, is there any harm in putting only 1 cu ft of carbon in it as compared to the 1.5 cu ft it can hold? My theory is that I have SRBs living in the filter, and I can't seem to get chlorine or peroxide in sufficient concentrations to them during the back wash to kill them off. However, I don't need much carbon because the H2O2 is already taking care of most of the smell, so perhaps reduce the bed height.
I would appreciate any thoughts.