Just translated your web-site and the more I read the more I read, the more curious I get.
Do you mind explaining a bit more about the sponge system? How often does the pump flushes the sponge? Why does it have to be intermittent?
Thanks!
Do you mind explaining a bit more about the sponge system? How often does the pump flushes the sponge? Why does it have to be intermittent?
Thanks!