Automated Water Change System Options

[kentchong]

Hi,

I am a lazy person, thinking to make one auto water change system for my new aquarium. Here is the design, hope sifu here give some comment:

 Auto_aquarium.pdf ( 15.59k ) Number of downloads: 730

water timer valve refer to www.gardena.com
1)4040 madular art.1276
2)24V art.1278

TQ
kent

[kentchong]

further info:

The idea is do 10% water change daily (can set different cycle; daily, every 2nd, 3rd or 7th day with duration 1-120min).

The operation sequence is
1) timer stop the pump, said at at 20.00
2) timer start open drain water timer & close filter inlet water timer at 20.01 for 10 min (depend flowrate)
3) timer start open inlet water timer at 20.12 for 10 min (depend flowrate)
4) timer start the pump back after 20.20

The gardena water controller can control up to 6 valve.