I've been through a few sizing calculators and I think I know what I need for resin capacity, but I have concerns about SFR.
My house has 3/4" copper. Family of 4, 3 full baths, 15gpg hardness, virtually no iron. No showers with multiple heads right now, but plans for one in the future. Typical usage - dishwasher, washing machine, showers daily, etc.
Interweb seems to agree on 75 gallons per person, so that puts me at 4500 grains per day or about a 32,000 or 40,000 grain system.
The bathtub test gives me 15gpm.
I am considering a Fleck 7000 SXT with 1.5 cubic feet of resin (48,000) to give me enough flow. The SFR is 12gpm. Is that enough considering my bathtub test is 15gpm? How do I size it right? I've read about constant SFR vs peak. I'm guessing that peak would be around 20gpm and constant around 12gpm, but I'm really not sure how to determine that. I just sort of guessed based on what might be in use at the same time.
My house has 3/4" copper. Family of 4, 3 full baths, 15gpg hardness, virtually no iron. No showers with multiple heads right now, but plans for one in the future. Typical usage - dishwasher, washing machine, showers daily, etc.
Interweb seems to agree on 75 gallons per person, so that puts me at 4500 grains per day or about a 32,000 or 40,000 grain system.
The bathtub test gives me 15gpm.
I am considering a Fleck 7000 SXT with 1.5 cubic feet of resin (48,000) to give me enough flow. The SFR is 12gpm. Is that enough considering my bathtub test is 15gpm? How do I size it right? I've read about constant SFR vs peak. I'm guessing that peak would be around 20gpm and constant around 12gpm, but I'm really not sure how to determine that. I just sort of guessed based on what might be in use at the same time.
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