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Re: Aquatic Plants Digest V4 #903
Dear Listers:
A friend of mine works for the Water Department in the nearby city of Denton,
TX. I am currently using RO water (reconstituted with SeaChem's Equilibrium
and PMDD/Jobes) because of the high sodium levels in my tap water (288 mg/l).
A couple of years ago I posted the analysis of my tap water here in Oak Point
and the general concensus amongst the water gurus at that time was "Yuck." I
am considering mixing Denton water with my R/O water because I still am
having algae problems. I think there is some element missing in my current
regiment.
Would anyone care to pontificate on this analysis of Denton's water?
CHEMICAL ANALYSES RAW TAP DIST
Aluminum (Al) mg/l 0.030 0.033 < 0.030
Ammonia (NH3) mg/L 0.171 0.58 0.56
Bicarbonate (as CaCO3) mg/L 99.5 95.9 98.3
Calcium (CaCO3) mg/L 71.7 68.2 67.0
Chloride (Cl) mg/L 21.6 25.9 26.7
Fluoride (F) mg/L 0.3 0.7 0.7
Iron (Fe) mg/L 1.43 0.03 0.030
Magnesium (Mg) mg/L 4.98 4.65 4.56
pH (std units) 8.01 8.20 8.18
Phosphate (P) mg/l 0.072 0.007 0.007
Potassium (K) mg/L 6.30 6.50 6.71
Sodium (Na) mg/L 26.9 39.1 38.5
Sulfate (SO4) mg/L 41.8 69.9 73.3
Temperature ( C) 22.5 22.8 24.0
Total Alkalinity (as CaCO3) mg/L 81.6 78.6 80.6
Total Hardness (as CaCO3) mg/L 104 107 102
Total Solids (TS) mg/L 236 256 264
Specific Conductance (umhos/cm) 343 421 414
Nitrate-N (NO3) mg/L 0.04 0.17 0.11
Langliers Index Value (-) 0.01 0.00
Manganese (Mn) mg/L 0.066 < 0.01 < 0.01
Does anyone know the significance Langliers Index Value?
Also, I asked the friend who gave this to me, what about Boron? She said that
they don't test for it, because there isn't any.
BTW, this water is considered by local homebrewers to be absolutely the best
water ever for making beer and wine. Maybe I should switch hobbies. :-)
Cheryl Hofmann
Oak Point, TX