Just purchased a really nice Aeroflo 36 site unit....if you got something similar let me know...I already broke a spinlok fitting on the manifold but I plugged it ...not needing all the channels...well I capped it at the manifold..it didnt cause over pressure from the pump ...and I need to get another spinlok fitting but I have struck out at the local supply stores...I may have to go to hydro stores on line...ha (that works most of the time)..and last does anyone have this unit and tried running it with 4 of the 6 channels hooked up?....all help appreciated Lyndog