still have Hydrogen Sulfide smell after chlorine injection

[brevard95]

moved into a house in central florida, with a well, it has chlorine injection, holding tank, carbon filter and softner. With > 10ppm chlorine measured at holding tank output, I still have smell on cold water faucets in house. 10ppm was max scale on test kit, i bet it was pushing 50-100ppm as i have since diluted the choline mix 10 to 1 with water to get level down to 8 ppm. the smell peristed thru this whole tunning process. there is no chlorine after the carbon filter.

once I bypassed the carbon filter and fill the pipes with chlorinated water and let sit for hour. didn't fix it. (hot water has smell as well) . Everything i read says this type of system should be able to control the hydrogen sulfide, but not for me. straight well water has some yellow, maybe iron or tannin, but none of that gets thru to the house. Softner is for sure taking hardness out of water.
I have not had water tested for ph, hardness, or anything as I thought this system should be imune to those parameters.
What shoud I do next.
thanks

[Korymcn]

Hi! For sound advice, I have passed this question on to our in-house water filter expert and will let you know as soon as I hear back. Thank you for reaching out!

[pawaterguy]

moved into a house in central florida, with a well, it has chlorine injection, holding tank, carbon filter and softner. With > 10ppm chlorine measured at holding tank output, I still have smell on cold water faucets in house. 10ppm was max scale on test kit, i bet it was pushing 50-100ppm as i have since diluted the choline mix 10 to 1 with water to get level down to 8 ppm. the smell peristed thru this whole tunning process. there is no chlorine after the carbon filter.

once I bypassed the carbon filter and fill the pipes with chlorinated water and let sit for hour. didn't fix it. (hot water has smell as well) . Everything i read says this type of system should be able to control the hydrogen sulfide, but not for me. straight well water has some yellow, maybe iron or tannin, but none of that gets thru to the house. Softner is for sure taking hardness out of water.
I have not had water tested for ph, hardness, or anything as I thought this system should be imune to those parameters.
What shoud I do next.
thanks

A couple of questions. That 10ppm measurement. Was it in the solution tank that feeds the main line? I can't imagine you're getting 10ppm out of the tap. That would be crazy. Is the injection site open? They clog up and need regular maintenence. Also, when you bypassed it and ran the chlorine through the system....after you put the system into service and noticed the smell again...was it only the hot water line or both hot and cold? If it was just the hot water side then check the anode rod in the water heater to make sure it still exists. If it has fully sacrificed itself into the water then smells can develop due to it no longer being there. Just throwing that out there for ya since I didn't note anything about cold water smell issues.

[brevard95]

the 10ppm was at at the output at the top of the holding tank, just before carbon filter. we had no directions on how to set the system up as it wasn't functioning when moved in, at first we filled the chlorine solution tank with pure bleach, then we started diluting it with water till we got to 8ppm. The chlorine pump has some knobs, but we just choose to dilute the tank. the pump only runs when water is flowing via a flow swtich.

When we flooded the system with chlorine, we waited till the lines were flushed clear, and we still had the smell on both the cold & hot water faucets.
have had the smell on both hot and cold for weeks now, the chlorine injection is clearly removing iron and other stuff that was staining toilet bowls, we just have the odor problem.

The replaceable filter that is in the refridgerator's water dispenser is able to remove the smell, or the fact that the water is cold is causing it to not smell.

I am thinking of replacing the carbon filter (after the holding tank) contents with catalytic carbon since it is supposed to also remove sulfer smell, we don't know how old the stuff in there is,
the cabon and softner systems are rainsoft silver series that you cannot get parts for, so i think maybe 2002-2007 system was installed? maybe time for new carbon anyway.
But i am a little worred that it will not be effective at sulfer smell removal because
I think it depends on there being some disolved oxygen in water and will the chlorinated water from the holding tank still have any oxygen in it?
due to cost, putting in 1 cubic foot even though tank holds 1.5.

my other thought is to try hydrogen peroxide in solution tank instead of chlorine, the cost is a concern, i don't know of a local source, more trial and error to get dilution correct, but one step at a time.

also was reading about the KDF85? cartridge thing that l think installs in softern resin tank. not cheap either.
thanks

[pawaterguy]

the 10ppm was at at the output at the top of the holding tank, just before carbon filter. we had no directions on how to set the system up as it wasn't functioning when moved in, at first we filled the chlorine solution tank with pure bleach, then we started diluting it with water till we got to 8ppm. The chlorine pump has some knobs, but we just choose to dilute the tank. the pump only runs when water is flowing via a flow swtich.

When we flooded the system with chlorine, we waited till the lines were flushed clear, and we still had the smell on both the cold & hot water faucets.
have had the smell on both hot and cold for weeks now, the chlorine injection is clearly removing iron and other stuff that was staining toilet bowls, we just have the odor problem.

The replaceable filter that is in the refridgerator's water dispenser is able to remove the smell, or the fact that the water is cold is causing it to not smell.

I am thinking of replacing the carbon filter (after the holding tank) contents with catalytic carbon since it is supposed to also remove sulfer smell, we don't know how old the stuff in there is,
the cabon and softner systems are rainsoft silver series that you cannot get parts for, so i think maybe 2002-2007 system was installed? maybe time for new carbon anyway.
But i am a little worred that it will not be effective at sulfer smell removal because
I think it depends on there being some disolved oxygen in water and will the chlorinated water from the holding tank still have any oxygen in it?
due to cost, putting in 1 cubic foot even though tank holds 1.5.

my other thought is to try hydrogen peroxide in solution tank instead of chlorine, the cost is a concern, i don't know of a local source, more trial and error to get dilution correct, but one step at a time.

also was reading about the KDF85? cartridge thing that l think installs in softern resin tank. not cheap either.
thanks

It all depends on how much fiddling you want to do. You can get a carbon system that backwashes with peroxide such as a Kinetico Sulfur Guard and be done...or, you can keep taking stabs at it with what you've got until you resolve it. Typically, I would start at maybe a 1 to 10 ratio of chlorine (Liquid shock or some other pool chlorine type chlorine...not Clorox or household bleach which contains heavy metals and stuff that make it not fit for potable water) to water in the solution tank...but, then the pump needs to be adjusted to where you get what you want into the lines. Is there a mixing/holding tank or is the chlorine being injected straight into the plumbing without a mixing tank?

[brevard95]

thanks for taking time to help, I am getting a handle on my options.
I wasn't able to find any pricing on the Kinetico Sulfter Guard on the web, looks like a local dealer item.

The system I have now is an older rainsoft silver series, for which the dealers don't carry any parts and just want to sell me whole new control head, so that has left me adverse to using systems that are dealer only distributed.

Yes there is a holding tank after the chlorine injector, big, like 6ft tall and 2ft diameter. And the output at the top of it is were were daily monitoring chlorine level until we got to 8 ppm.

I read that the sulfadane
I decided I am going to try replacing media in my carbon tank with catalytic carbon and see where I am at.

[brevard95]

forgot finish my sentence, I read the kinetico systems main ingredient sulfa.... is a form of catalytic carbon, and there own manual says replacement every 5 years is not unusual. So i feel better about my decision to try catalytic carbon.

[pawaterguy]

forgot finish my sentence, I read the kinetico systems main ingredient sulfa.... is a form of catalytic carbon, and there own manual says replacement every 5 years is not unusual. So i feel better about my decision to try catalytic carbon.

The one other thing that will foul up the carbon and cause issues is iron in the water. I forget if you mentioned if it was tested or not.

[brevard95]

have not had water tested, no idea of iron level. last few weeks maintained 3-5ppm chlorine out of holding tank and still have smell.

Yesterday replaced carbon tank resin with catalytic carbon and cold water faucets seem good, drained and refilled hot water heater, an hour later hot water seemed fine, but need to give it few days of sitting there hot to be sure.

For some reason, my old carbon was good enough to remove chlorine, but it that wasn't good enough for my water. With the Catalytic carbon I may not even need chlorine injection any more as far a smell is concerned, but of coarse disinfection is not a bad thing to have. so I think I am good to go.