Hallo,
Sorry for the late responce…
Why I change the tank?? The most special reasen is the many water chances. The tank stands on de first flour and I have to take many steps every time to chance the water. Its more easy to chance 2 liters than a bucket of 10 l. water every 5 days.
I am going to think about it….
The weather here is still bad… 🙁