Water Purification

If pure drinking water is what you want, a Reverse Osmosis drinking system is what you need!

We feature Reo Pure filter systems which utilize the most advanced reverse osmosis process available today. The reverse osmosis method of drinking water treatment has long been regarded as one of the most efficient ways to reduce impurities. Our trained Water Quality Techs can expertly install an RO system for your family.

What is Reverse Osmosis?

Reverse Osmosis is a process in which water is forced by pressure through an efficient pre-filter which removes the larger particles of dirt and debris. Then, the water is squeezed through microscopic pores in the reverse osmosis membrane eliminating up to 99% of the impurities. Finally, the carbon post filter removes objectionable tastes and odors to enhance the quality of your drinking water.

Reo Pure filter system is tested and certified for the reduction of:

Material/Element % Removed Material/Element % Removed
Aluminum 99% Potassium 92%
Arsenic 99% PCBs 97%
Barium 94% Polyphosphate 99%
Bicarbonate 94% Radium 97%
Cadmium 97% Selenium 97%
Calcium 97% Silicate 96%
Chromate 92% Silver 85%
Copper 97% Sodium 96%
Detergents 97% Strontium 97%
Fluoride 92% Sulfate 97%
Lead 97% Cryptosporidium 99%
Magnesium 97% Insecticides 97%
Nickel 97% Herbicides 97%
Nitrates 80% Zinc 99%
Total Dissolved Solids 95-99% Bacteria 99%

DAY stocks RO filters and can help you with filter changes and maintenance.


  • Sediment Pre-Filter – Change yearly (more often in areas with high sediment in the water).
  • Carbon Post-Filter -Change yearly.  This is necessary to help ensure water quality.
  • R.O. Membrane – The R.O. membrane should be changed when rejection rate falls to 85-80%. The rejection rate should be tested every year. Our water quality techs use a  TDS Meter (total dissolved solids tester)  to compare the amount of TDS in the incoming water vs. the purified water.

Book an Appointment

We cover all of your HVAC and plumbing needs. Book an appointment with us or give us a call for a free quote.

(507) 235-9009

What People are saying

Today a part went out for steam heat at Pheasant Run Appartments. We had the good fortune to call Day Plumbing in Fairmont. They sent someone to Sioux Falls to get parts on a Saturday morning and came back and did repairs right after dinner. We are so thankful for their help and the plumber that was on call. Fairmont is so fortunate to have Day Plumbing. 

– Patty Taylor Buckmeier

Bathroom Remodel Frequently Asked Questions

Will a DAY designer help me choose all of the materials?

Yes, Your Day Plumbing Coordinator will help you navigate your options and make a choice that fits your style and budget.

Should I have design ideas before I start the renovation process?

Not necessarily, although it is helpful to have a general idea and/or photos of what you like in order to make your decisions easier.

What features should I plan to invest in the most for my new bathroom?

Quality Tubs, Showers and Vanities are usually the ones to give the most thought.

Is there a good alternate to tiling a shower?

Yes, we have various samples of the solid surface shower and tub surround options in our showroom.  These materials are beautiful, and durable and avoid the common problems of leakage and mildew with grouted tile options.

Should I remodel my entire bathroom or do it in stages?

It can be done in stages, depending on your needs and budget.

Get a Free Quote -or- Ask a Question

Operating Hours

Monday – Friday

7:30 AM – 5:30 PM

*24 Hour Emergency Service Available


1410 E. Blue Earth Avenue

Fairmont, MN 56031