Jasonir129
New Member
Hi all, I'm looking to add and modify my current filtration circuit which consists of:
1) well tank
2) injection port with static mixer (stenner peristaltic pump pulls from tank with 2 parts water to 1 part 17% sodium hydroxide to raise pH)
3) retention tank (this is the one: https://www.nelsencorp.com/itemdetail/RETENTION TANK-1248-SS)
4) 20" big blue filter for sediment
5) water softener
Here are my water test results (before filtration): https://gosimplelab.com/UeKR8mNjw3/overview
low pH (~5.5 depending on the day), variety of other things including total coliform (shocking well seemed to take care of that)
we have done other tests:
iron bacteria: the test with the ball, we had dense sludge -- we see orange film in our toilets and slime in the tailpieces of our sink drains
radon in water: 1960 pCi/L (not sky high, but it's there)
I was thinking that we could add chlorine or peroxide injection to deal with iron bacteria, use the retention tank for dwell time, and then follow with a backwashing GAC filter to pull out the chlorine or peroxide. I guess there are two main issues of concern:
1) If was use a backwashing GAC it seems like it will collect the radon in the water, is this ok? All of the GAC filters I see for this purpose are non-backwash types
2) It looks like we can add chlorine or peroxide to the tank with the NaOH, so should we add a second injection system? Or maybe I would just ditch the NaOH and get a calcite+corosex backwashing filter and use the injection just for chlorine?
I got some my filtration gear from Allan (ditttohead) a few years ago and it's been great for the stuff we were looking to address, just wasn't aware of the iron bacteria issue at the time. I'm getting feedback from him on this too, just looking to see if the community here has any other creative ideas how to minimize what I add/change.
Thanks in advance for any feedback on this.
1) well tank
2) injection port with static mixer (stenner peristaltic pump pulls from tank with 2 parts water to 1 part 17% sodium hydroxide to raise pH)
3) retention tank (this is the one: https://www.nelsencorp.com/itemdetail/RETENTION TANK-1248-SS)
4) 20" big blue filter for sediment
5) water softener
Here are my water test results (before filtration): https://gosimplelab.com/UeKR8mNjw3/overview
low pH (~5.5 depending on the day), variety of other things including total coliform (shocking well seemed to take care of that)
we have done other tests:
iron bacteria: the test with the ball, we had dense sludge -- we see orange film in our toilets and slime in the tailpieces of our sink drains
radon in water: 1960 pCi/L (not sky high, but it's there)
I was thinking that we could add chlorine or peroxide injection to deal with iron bacteria, use the retention tank for dwell time, and then follow with a backwashing GAC filter to pull out the chlorine or peroxide. I guess there are two main issues of concern:
1) If was use a backwashing GAC it seems like it will collect the radon in the water, is this ok? All of the GAC filters I see for this purpose are non-backwash types
2) It looks like we can add chlorine or peroxide to the tank with the NaOH, so should we add a second injection system? Or maybe I would just ditch the NaOH and get a calcite+corosex backwashing filter and use the injection just for chlorine?
I got some my filtration gear from Allan (ditttohead) a few years ago and it's been great for the stuff we were looking to address, just wasn't aware of the iron bacteria issue at the time. I'm getting feedback from him on this too, just looking to see if the community here has any other creative ideas how to minimize what I add/change.
Thanks in advance for any feedback on this.