Dankoff Solar SlowPump

The Dankoff Solar SlowPump was the world’s first commercially available low power solar pump. In response to those that claimed it was impossible, the Solar SlowPump was developed by Windy Dankoff in 1983 and has thousands of installed units worldwide over its nearly 40-year life. Produced in a wide range of sizes, the Slow SlowPump is used to draw water from shallow sources and push it as high as 450 vertical feet through miles of pipeline. Designed for reliability and maintainability, wear parts typically last 5-10 years, with an overall life expectancy of 15-20 years before rebuild.

Output:  0.2 – 6.2 GPM (0.75 – 23 LPM)
Max Total Dynamic Head (TDH):  560 ft.  (170m)
Suction Capacity: 20 vertical feet (6 m) at sea level.  Subtract 1ft. for every 1000ft. altitude (1 m for every 1000 m) 
Weight:  12 – 29lbs (5-13kg) – Dependent on model
Notes:  MUST be filtered clean (reference spec. sheet); 15 – 20 year life expectancy
Warranty: 1 year against defects in materials and workmanship

12V MODELS & DETAILS

Item Description Lbs. L” W” H” MSRP
1303-12 Dankoff Solar SlowPump 1303-12
2.15gpm, 240' TDH/103.9 psi, Max Amps: 15
16 18 12 10 $999
1304-12 Dankoff Solar SlowPump 1304-12
1.48gpm, 320' TDH/138.5 psi, Max Amps: 15
16 18 12 10 $999
1308-12 Dankoff Solar SlowPump 1308-12
1.00gpm, 400' TDH/173.2 psi, Max Amps: 15
16 18 12 10 $999
1310-12 Dankoff Solar SlowPump 1310-12
0.70gpm, 440' TDH/190.5 psi, Max Amps: 15
16 18 12 10 $999
1322-12 Dankoff Solar SlowPump 1322-12
0.39gpm, 440' TDH/190.5 psi, Max Amps: 15
16 18 12 10 $999
2505-12 Dankoff Solar SlowPump 2505-12
2.75gpm, 180‘ TDH/77.9 psi, Max Amps: 15
17 18 12 10 $999
2507-12 Dankoff Solar SlowPump 2507-12
3.65gpm, 140‘ TDH/60.6 psi, Max Amps: 15
17 18 12 10 $999

24V MODELS & DETAILS

Item Description Lbs. L” W” H” MSRP
1303-24 Dankoff Solar SlowPump 1303-24
2.15gpm, 240' TDH/103.9 psi, Max Amps: 8
16 18 12 10 $999
1304-24 Dankoff Solar SlowPump 1304-24
1.48gpm, 320' TDH/138.5 psi, Max Amps: 8
16 18 12 10 $999
1308-24 Dankoff Solar SlowPump 1308-24
1.00gpm, 400' TDH/173.2 psi, Max Amps: 8
16 18 12 10 $999
1310-24 Dankoff Solar SlowPump 1310-24
0.70gpm, 440' TDH/190.5 psi, Max Amps: 8
16 18 12 10 $999
1322-24 Dankoff Solar SlowPump 1322-24
0.39gpm, 440' TDH/190.5 psi, Max Amps: 8
16 18 12 10 $999
1403-24 Dankoff Solar SlowPump 1403-24
24VDC Battery: 2.50gpm, 440' TDH/190.5 psi, Max Amps: 20.7
24VDC PV: 3.2gpm, 440' TDH/190.5 psi, Max Amps: 16.3
28 22 16 14 $1,549
1403-24P Dankoff Solar SlowPump 1403-24P
24VDC Battery: 2.50gpm, 440' TDH/190.5 psi, Max Amps: 20.7
24VDC PV: 3.2gpm, 440' TDH/190.5 psi, Max Amps: 16.3
28 22 16 14 $1,549
1404-24 Dankoff Solar SlowPump 1404-24
24VDC Battery: 1.62gpm, 440' TDH/190.5 psi, Max Amps: 15.7
28 22 16 14 $1,549
1408-24 Dankoff Solar SlowPump 1408-24
24VDC Battery 1.2 gpm, 560' TDH/242.42 psi, Max Amps: 12.8
24VDC PV 1.6 gpm, 560'/242.42 psi, Max Amps 11.5
28 22 16 14 $1,549
2505-24 Dankoff Solar SlowPump 2505-24
2.75gpm, 180‘ TDH/77.9 psi, Max Amps: 8
17 18 12 10 $999
2507-24 Dankoff Solar SlowPump 2507-24
3.65gpm, 140‘ TDH/60.6 psi, Max Amps: 8
17 18 12 10 $999
2605-24B Dankoff Solar SlowPump 2605-24
24VDC Battery: 3.16gpm, 360' TDH/155.8 psi, Max Amps: 20.6
32 22 16 14 $2,099
2607-24 Dankoff Solar SlowPump 2607-24
24VDC Battery: 4.29gpm, 280' TDH/121.2 psi, Max Amps: 20.4
24VDC PV: 5.59 gpm, 280' TDH/121.2 psi, Max Amps 17.8
32 22 16 14 $2,099

48V MODELS & DETAILS

Item Description Lbs. L” W” H” MSRP
1303-48 Dankoff Solar SlowPump 1303-48
2.15gpm, 240' TDH/103.9 psi, Max Amps: 4.25
16 18 12 10 $999
1304-48 Dankoff Solar SlowPump 1304-48
1.48gpm, 320' TDH/138.5 psi, Max Amps: 4
16 18 12 10 $999
1308-48 Dankoff Solar SlowPump 1308-48
1.00gpm, 400' TDH/173.2 psi, Max Amps: 4
16 18 12 10 $999
1310-48 Dankoff Solar SlowPump 1310-48
0.70gpm, 440' TDH/190.5 psi, Max Amps: 4
16 18 12 10 $999
1322-48 Dankoff Solar SlowPump 1322-48
0.39gpm, 440' TDH/190.5 psi, Max Amps: 4
16 18 12 10 $999
1403-48 Dankoff Solar SlowPump 1403-48
48VDC Battery: 2.50gpm, 440' TDH/190.5 psi,..Max Amps: 11.0 PV / 10.3 Battery
28 22 16 14 $1,543
1404-48 Dankoff Solar SlowPump 1404-48
48VDC Battery: 1.62gpm, 440' TDH/190.5 psi,..Max Amps: 8.4 PV / 7.8 Battery
28 22 16 14 $1,543
1408-48 Dankoff Solar SlowPump 1408-48
48Volt Battery or PV Direct..Max 560' lift.
Battery Max Amps: 7.5A - Battery Flow Range: 1.56 - 1.34 gpm
PV Max Amps: 7A - PV Flow Range: 2 - 1.7 gpm
28 22 16 14 $1,543
2505-48 Dankoff Solar SlowPump 2505-48
2.75gpm, 180‘ TDH /77.9 psi, Max Amps: 4
17 18 12 10 $999
2507-48 Dankoff Solar SlowPump 2507-48
3.65gpm, 140‘ TDH / 60.6 psi, Max Amps: 4
17 18 12 10 $999
2605-48 Dankoff Solar SlowPump 2605-48
48VDC Battery: 3.16gpm, 360' TDH/155.8 psi,..Max Amps: 11.0 PV / 10.3 Battery
32 22 16 14 $2,099
2607-48 Dankoff Solar SlowPump 2607-48
48VDC Battery: 4.00gpm, 280' TDH/121.2 psi,..Max Amps: 10.9 PV/10.2 Battery
32 22 16 14 $2,099