Quote Originally Posted by alton View Post
Just a thought buy or borrow a long sump palce all your new rock in it, and plumb it into your exisiting system. In two months the new rock should pick up enough to help with the transfer?
I have a large sump! I was worried it would pick up spores or something from the main system though.
Kevin, yeah I was wondering about mortar curing time because I read it takes forever for cement to stabilize (pH) but I don't know how similar mortar and cement are in that respect...