Figure 1: PER-R persitaltic pump.
| Dosing and Top-off |
Two and a half litres of Kalkwasser are dripped into the overflow pipe throughout the day via an Aqua PER-R peristaltic pump (Figure 1). The pump has been adjusted so that its rate is around 250 mL/hr and the pump is on a timer with multiple on and off periods (Table 1) so that the total running time is 10 hours per day. The peristaltic pump pulls Kalkwasser from a 60 L reservoir (shared with 50G1) which is filled with the decanted liquid from my Bulk Kalkwasser.
Figure 1: PER-R persitaltic pump.
Table 1: Timer settings and Kalkwasser quantity added.
| On | Off | Hours | Litres | On | Off | Hours | Litres | |
| 0:00 | 0:15 | 0.25 | 0.0625 | 10:00 | 10:15 | 0.25 | 0.0625 | |
| 0:30 | 0:45 | 0.25 | 0.0625 | 10:30 | 10:45 | 0.25 | 0.0625 | |
| 1:00 | 1:15 | 0.25 | 0.0625 | 11:00 | 11:15 | 0.25 | 0.0625 | |
| 1:30 | 1:45 | 0.25 | 0.0625 | 12:00 | 12:15 | 0.25 | 0.0625 | |
| 2:00 | 2:15 | 0.25 | 0.0625 | 13:00 | 13:15 | 0.25 | 0.0625 | |
| 2:30 | 2:45 | 0.25 | 0.0625 | 14:00 | 14:15 | 0.25 | 0.0625 | |
| 3:00 | 3:15 | 0.25 | 0.0625 | 15:00 | 15:15 | 0.25 | 0.0625 | |
| 3:30 | 3:45 | 0.25 | 0.0625 | 16:00 | 16:15 | 0.25 | 0.0625 | |
| 4:00 | 4:15 | 0.25 | 0.0625 | 17:00 | 17:15 | 0.25 | 0.0625 | |
| 4:30 | 4:45 | 0.25 | 0.0625 | 18:00 | 18:15 | 0.25 | 0.0625 | |
| 5:00 | 5:15 | 0.25 | 0.0625 | 19:00 | 19:15 | 0.25 | 0.0625 | |
| 5:30 | 5:45 | 0.25 | 0.0625 | 19:30 | 19:45 | 0.25 | 0.0625 | |
| 6:00 | 6:15 | 0.25 | 0.0625 | 20:00 | 20:15 | 0.25 | 0.0625 | |
| 6:30 | 6:45 | 0.25 | 0.0625 | 20:30 | 20:45 | 0.25 | 0.0625 | |
| 7:00 | 7:15 | 0.25 | 0.0625 | 21:00 | 21:15 | 0.25 | 0.0625 | |
| 7:30 | 7:45 | 0.25 | 0.0625 | 21:30 | 21:45 | 0.25 | 0.0625 | |
| 8:00 | 8:15 | 0.25 | 0.0625 | 22:00 | 22:15 | 0.25 | 0.0625 | |
| 8:30 | 8:45 | 0.25 | 0.0625 | 22:30 | 22:45 | 0.25 | 0.0625 | |
| 9:00 | 9:15 | 0.25 | 0.0625 | 23:00 | 23:15 | 0.25 | 0.0625 | |
| 9:30 | 9:45 | 0.25 | 0.0625 | 23:30 | 23:45 | 0.25 | 0.0625 | |
| Total per day | 10.00 | 2.50 | ||||||
Freshwater is automatically added to the tank from a reservoir (Figure 2) above the tank. A float valve in the sump (Figure 3), regulates the water flow so that water is only added as it evaporates. The reservoir holds 18L, services both 50G1 and 50G2 and is topped up with RO water produced by my Probe Counter Top RO 4 Stage # 43230 from Hills District Water Filters.
Figure 2: Freshwater reservoir.
Figure 3: Float valve in sump.
Last updated: March 11, 2005