New well Water treatment. Softener with tankless RO.

Thinking about a water softener and a tankless RO system. Any help would be greatly appreciated.

Well test results.
Nitrate and Nitrite as N <0.071mg/L
pH 7.57
Arsenic (As)-Total 0.0040mg/L
Barium (Ba)-Total 0.0244mg/L
Boron (B)-Total 0.151mg/L
Calcium (Ca)-Total 81.3mg/L
Copper (Cu)-Total 0.0032mg/L
Iron (Fe)-Total 0.50mg/L
Magnesium (Mg)-Total 99.2mg/L
Manganese (Mn)-Total 0.0185mg/L
Potassium (K)-Total 5.29mg/L
Sodium (Na)-Total 48.2mg/L
Uranium (U)-Total 0.00622mg/L
Zinc (Zn)-Total <0.020mg/L
TDS (Calculated from 713mg/L
EC)
Sulfate 231mg/L
Nitrite-N <0.050mg/L
Nitrate-N <0.050mg/L
Hardness (as CaCO3) 611mg/L
Hardness-grains/USgal 35.8
Hardness-grains/IMPgal 42.9
Fluoride 0.35mg/L
Conductivity 1100
Chloride 33.2 mg/L

Grant

I ran the numbers and something is not right IMO. The hardness ions don't add up. I could be wrong or just missing something. Anyway, need to know the amount of people in the family, size of home.

mialynette2003 said:

I ran the numbers and something is not right IMO. The hardness ions don't add up. I could be wrong or just missing something. Anyway, need to know the amount of people in the family, size of home.

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5 bedroom home, family of 4

Number of bathrooms and age of children? Any large jetted tubs or multiple shower heads and/or body sprays?

Tankless RO? Is that a Merlin?

Use this site to size your unit. http://www.quality***xx water treatment.com/water_softener_sizing.htm
Use 1 for the iron.

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That web site misapplies equipment. They sell a Fleck 6700 (the Prosoft series) on larger than a 12" dia tank (a 2.0 cuft softener) which is against what Fleck says the control valve should be used on.

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Gary Slusser said:

Number of bathrooms and age of children? Any large jetted tubs or multiple shower heads and/or body sprays?

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3 Full Bathrooms, 1 powder room,
Ensuite shower has 4 shower heads.

Children are 10 and 12.

Well produces lots of water and is pumped by a variable drive grundfos consistent pressure pump.
Thanks

water solutions said:

Tankless RO? Is that a Merlin?

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I haven't choose one yet but these are the ones I have found.

iSpring 400GPD
Evolution Tankless Reverse Osmosis System (1000GPD)
GE Merlin 720 GPD Tankless

Four shower heads plus all other water being used at the same time should come up to 15-18 gpm peak demand and the softener should have a constant SFR of 15 0r 18 gpm. That means a 2.5 or 3.0 cuft.

For the K of capacity and salt dose settings click the Click Here link in my signature and do the math by hand.

Gary Slusser said:

Four shower heads plus all other water being used at the same time should come up to 15-18 gpm peak demand and the softener should have a constant SFR of 15 0r 18 gpm. That means a 2.5 or 3.0 cuft.

For the K of capacity and salt dose settings click the Click Here link in my signature and do the math by hand.

Click to expand...

Hello Gary,
I was also looking for some insight on the RO unit. Have you used a tankless RO before or do you believe I am better off with a storage system?

I am not a fan of tankless ROs although I sold a few of the Merlin and they worked well but.. to justify one you have to be using more than just a few gallons a day.