See the "clear" pipe to the left of my multi-port valve? I went to drain some water the other day and water spewed out of a crack in it. Odd they would insert a viewing port there, what are you looking at besides water flowing? It's turned so yellow/orange with age you can't see though it anyway. Any good external cements to patch something like this? Can't really replace it without replacing whole valve. Not a real big deal until it breaks.. just want to prevent that.