In a message dated 10/9/2004 4:36:20 PM Eastern Standard Time, [log in to unmask] writes: zabo filter (my research so far has netted geekie stuff and adult entertainment - I suspect neither of these are correct) Never heard of it. Possible misspelling. Also possible that something exists despite my never having never heard of it. infiltrator 24 (is this it? _http://www.infiltratorsystems.com/products_septic_eq.htm_ (http://www.infiltratorsystems.com/products_septic_eq.htm) ) splash block - I assume these are the things you put under a downspout to prevent water infiltration through a foundation/basement wall That's a firm one, as the air force ROTC boys used to say. I think that's it for now. Well, it is late. Thanks. Feel free to call on anybody any time. Ralph