Alto Antistone Device - Alto Neptune 5 Service Manual

mg/l Grains
0-17 0-1
17-60 1,1-3,5
60-128 3,6-7,5
128-180 7,6-10,5
>180 >10,5
Neptune_GB_Ver.2.0_10/03
Adjustment / Test
The ALTO AntiStone device is set at the factory to water
hardness class 2. Adjustment steps: 1.
Measure the water hardness or ask your water supply
company. Read off setting for ALTO AntiStone from the table
below and set the adjusting knob to required position.
°dH °e
0-7 0-8,8 0-12,5
7-14 8,8-17,5 12,5-25,1
14-21 17,5-26,3 25,1-37,6
>21 >26,3
°f ppm Ca Description
0-50
slightly hard
51-150 moderately hard
151-300
>37,6 >300

ALTO AntiStone device

Setting
NEPTUNE 5 NEPTUNE 7
soft 0
1
2
hard 3
very hard 4
7.
0
1-2
2-3
3-4
4
52.