Hydrotech 6700 XTR Valve Downflow Automatic Water Softeners Operation Manual - Manual (Page 3)

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Performance and Specifications
Downflow Capacity at Various Salt Dosages Service Flow Backwash Resin Mineral Brine Brine Tank Shipping
Metered grains Rate (2) Flow Rate Volume Tank Size (3) Tank Size (3) Salt Capacity Weight
Model @15lb/cf @10lb/cf (1) @6lb/cf @3lb/cf USGPM USGPM cu. ft. inches inches Lbs. Lbs.
6700MID-844-75 22,500 18,000 12,750 9,750 8 1.5 0.75 8 x 44 18 x 33 335 70
6700MID-648-100 30,000 24,000 17,000 13,000 10 2.0 1.00 9 x 48 18 x 33 335 85
6700MID-1047-125 37,500 30,000 21,250 16,250 12 2.4 1.25 10 x 47 18 x 33 335 110
6700MID-1054-150 45,000 36,000 25,500 19,500 12 2.4 1.50 10 x 54 18 x 33 335 125
6700MID-1252-200 60,000 48,000 34,000 26,000 13 3.5 2.00 12 x 52 18 x 33 335 150
6700MID-1450-250 75,000 60,000 42,500 32,500 13 5.0 2.50 14 x 50 21 x 36 335 190
ADDITIONAL INFORMATION: Operating Temperature Range = 34° to 110°F (1° to 43°C). Operating Pressure Range = 20 to 120 psi (1.37 to 8.27 bar). The manufacturer reserves the right to make product
improvements which may deviate from the specifications and descriptions shown above, without obligation to change previously manufactured products or to note the change.
CAUTION: These products are not intended to be used to treat water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
NOTES:
(1) 10lb/cu.ft. salt dosage is the standard factory setting. (2) The Service Flow Rate given will not exceed a pressure drop of 15psi. (3) Dimensions of cylindrical tanks shown are diameter (or width) x height.
Cabinets shown as length x width x height.
How Your Water Conditioner Works
Hard water enters your home through the main supply line, enters your water conditioner, and passes down through a bed
of ion exchange resin which softens the water. An ion exchange process takes place in which the resin beads capture and
hold calcium and magnesium, the hardness impurities, while the water takes on sodium ions. The soft water then flows up
and into your household water line.
On the days your water conditioner regenerates, the resin is automatically recharged by passing a brine solution (salt
water) through it. This reverses the ion exchange process, charging the resin with sodium and freeing the hardness
minerals. These minerals and the brine solution are then flushed away through the drain line followed by a rapid rinse.
The resin bed is again ready to soften water.
Figure 1