Replies

1. 
   CaseyR_ | Dec 21, 2000 08:12pm | #1

   *
   I have not had direct experience with this, but my guess is that if you have moisture condensing between the cast iron and the copper pipe, it would form an electrolyte and you could have some galvanic corrosion. You could probably use some of the foam pipe insulation on your copper pipes to provide a barrier (you probably want this on your hot water pipes anyway, and placing it on your cold water pipes will minimize condensation and can keep your drinking water cooler in summer). Plastic wire ties might be a neater solution for securing the pipes than wire - two can be fastened together if you need more length.

1. 
   The_Tennis_Court_Builder_...on_t | Dec 21, 2000 09:40pm | #2

   *you must use two phase wire.

1. 
   Francis_Voignier | Dec 22, 2000 03:35am | #3

   *That's it, like the ones in your clock!fv

2. 
   Rich_Regan | Dec 22, 2000 03:35am | #4

   *
   Another thing I noticed with my old galvanized pipes - in a couple of spots they are clamped to the cast iron vent lines with bailing wire where the cast iron is running horizontally across the path of the vertical water lines. If I replace the galvanized with copper, would cast iron have the same ill effects on the copper as galvanized does? I am thinking I could put a piece of rubber or foam in between the two and use 10g or 12g coated wire to clamp the pipe. What's the right way?