Thursday, September 10, 2015

Iron and Sulfur/Hydrogen Sulfide Problems: Using Greensand Filter and Chlorination To Solve the Problem

“We have a well and appear to have iron and possibly sulfur/hydrogen sulfide problems.  I tried measuring pump output, got about 4 gallons per minute. Looks like a greensand system would be the way to go, but would like your opinion.  Disturbs me that all greensand systems call for 5 gpm backflush flowrate but our system can only do 4 gpm.”

Mr N.

Hello sir,

Actually if you went with the smallest greensand system, the 0.75 CF, you could technically flush it with a 4 gpm backwash rate without any problems.  4 gpm is enough to make sure the rust gets properly cleared out.   This would be large enough for a 1 bathroom home or a home with 1 to 2 persons in it.

For very strong sulfur problems, a greensand system with potassium permanganate rinse alone might not be entirely sufficient.  In cases of stronger odor, chlorination  prior to the greensand filtration is recommended and works really well.  If you did use chlorination or ozone injection prior to the filtration, no potassium permanganate chemical is needed.  The chlorine can easily be removed, prior to the home.

The result is clean, iron-free, odor-free, chlorine-free water though out your home!
Check out this diagram:

Greensand Filter 5900E 1.0 cu. Ft, 9 x 48 Tank:                               

greensand filterAll the filter media you need for the system is included.  No need for costly Permanganate Tank as simply uses injected Chlorine residual to oxidize and remove iron, manganese, and sulfur odors. Works great on chlorinated water.  Filter tank is NSF certified one piece seamless polyester construction for long life. Rugged heavy-duty IWT NSF-Certified backwash control valve features fully adjustable backwash and rinse cycles saving water and allowing maximized performance. Time-tested hydraulically balanced piston seal and spacers provide years of trouble-free service.

Dimensions: Filter tank diameter:  9 inches; height including control valve: 54.5 inches.

Excellent warranty:  7 years on the control valve; 10 years on the filter media tank.

Click here for details.

Precision-24 Metering Pump with 15 Gallon Solution Tank:                     

chlorinatorExtremely versatile pump comes in either 115 or 220 volt so as to be wired to come on whenever your well or pressure system is energized.  Works with well water flow rates from 1 – 50 Gallons per Minute (GPM).

Output rating:  0.1 – 24 Gallons per Day (GPD).  Pressure rating:  Will inject into lines with up to 110 PSI.  Digital speed adjustment allows for quick changes to pump output.

Additional features:  Degassing Valve is built in which makes this great for chlorination use.  System includes Chlorination Pump, 10 Gallon Solution Tank, Injection Check Valve, tubing and installation fittings.  25 & 35 Gallon tanks also available for additional cost. 

 You can also check out this link for more information.