270win
New Member
Hello Everyone,
My water has a hydrogen sulfide problem that started this winter. It has gotten increasingly worse as time goes by so it's time to take care of it. When it first started, I assumed it was my greensand filter because it was not sucking in the PotPerm as it should. After replacing the float system in the PotPerm tank, and replacing the Fleck 2510, the solution was drawing correctly during the backwash cycle. Immediately afterwards, the smell mostly went away. Thought I’d had it fixed.
It was good for a while and now it’s back, stronger than ever. The smell still seems to vary with regeneration but never goes away. It was very mild this morning, but awful yesterday. Both the Greensand and Softener regenerated last night. They are usually staggered but once in a while they both run.
Time to ask the guys here!
My well information:
System Information:
I have also several questions:
After a disinfect is done, should I consider re-bedding any of my tanks? The PH Neutralizer and Greensand are original, so 18 years now. When asking this before, I was told to test the water and if they are working, there is no need to re-bed.
Should I disinfect the tanks? Can only imagine a big dark petri dish like environment
If I disinfect the tanks, will that ruin the media?
I plan on just changing the charcoal anyway. Imagine its fouled by now.
I very much appreciate your feedback as always. It’s a great forum!
*On a side note, my neighbor just recently dug up his drywell near the property line because it was backing up to the house. I think he dumps graywater in it. It’s been there for years but wondering if it may have something to do with my new issue? It is about 150 feet away from my well.
My water has a hydrogen sulfide problem that started this winter. It has gotten increasingly worse as time goes by so it's time to take care of it. When it first started, I assumed it was my greensand filter because it was not sucking in the PotPerm as it should. After replacing the float system in the PotPerm tank, and replacing the Fleck 2510, the solution was drawing correctly during the backwash cycle. Immediately afterwards, the smell mostly went away. Thought I’d had it fixed.
It was good for a while and now it’s back, stronger than ever. The smell still seems to vary with regeneration but never goes away. It was very mild this morning, but awful yesterday. Both the Greensand and Softener regenerated last night. They are usually staggered but once in a while they both run.
Time to ask the guys here!
My well information:
- Drilled well is 18 years old. I’m the original owner here.
- Never had H2S issues before this year
- Only performed the initial sanitize (bleach) when we installed the well 18 years ago.
- The water is nasty with iron. If I put raw water in a bucket and leave it, it goes brown with an oily looking surface.
- Well depth is 480 feet
- 6” bore
- Only about 5-10 feet of casing if I recall. Nice rocky New Hampshire lot

- Pump is dropped to around 450 feet
- 6 GPM
- Static level originally about 30 – 40 feet from the top. This past month water is pushing out of the top with all the rain we’ve had
System Information:
- Water treatment (in order)
- PH Neutralizer 10x54 tank with Fleck 2510 valve filled with Calcite and Corosex at 2:1 (Raw water about 5.5 ph) re-bedded about 2 months ago. Ph now around 7.0 I think its on a 3 day regeneration cycle.
- Green sand 10x54 tank, Fleck 2510 valve. Pot Perm for regen. Regenerates every 2 days
- Water Softener 10x54 tank, Fleck 2510 valve with salt brine tank. Regenerates every 3 days
- Activated charcoal up flow, 12x36 tank, no valve
- Big Blue spin on particle filter
- Original water test attached as JPG
- Disinfect with the Moravec procedure first? (Reach 4’s post)
- Get a new water test done? If so, before I start?
- Etc. etc
I have also several questions:
After a disinfect is done, should I consider re-bedding any of my tanks? The PH Neutralizer and Greensand are original, so 18 years now. When asking this before, I was told to test the water and if they are working, there is no need to re-bed.
Should I disinfect the tanks? Can only imagine a big dark petri dish like environment
If I disinfect the tanks, will that ruin the media?
I plan on just changing the charcoal anyway. Imagine its fouled by now.
I very much appreciate your feedback as always. It’s a great forum!
*On a side note, my neighbor just recently dug up his drywell near the property line because it was backing up to the house. I think he dumps graywater in it. It’s been there for years but wondering if it may have something to do with my new issue? It is about 150 feet away from my well.