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Problem with silicone caulking turning red color in a shower-everything is brand new-tub,fixture,tub liner kit,new pex plumbing pipe

Everything is brand new ,but the silicone caulk which is the Kitchen/Bath/Plumbing Grade which started out white in color has now started to turn red in color.. The caulk I used was the higher grade above Window
/Door Grade Silicone.Is it possible the pex plumbing pipe is turning the caulking Red in Color.The pex pipe for the Hot Water is red in color. The brand name of the silicone caulking used is G.E The Tub color is White and the Tub liner Kit is white in color.

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Manage My Life
I have discovered that the cause may be related to a shower head that had plastic parts.
I now have replaced the shower head with an all metal shower head and the problems have gone away.....
by Manage My Life
November 9th, 2012
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Manage My Life
I am fairly confident that your red hue is the result of the type of water you are supplied, the result of a reaction between a cleaner or product used in the shower and the caulk, or the simple growth of mildew in your shower. As such, rather than worry about the products used in your rehab, you may want to work on increasing the ventiliation in the shower area to prevent mildew growth, cleaning the shower staill, and/or checking with your water municipality to learn about what normal water contains in terms of iron levels.
by Manage My Life
March 28th, 2012
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Manage My Life
After all the work that goes into applying caulk, it would be disappointing to have the white caulk turn red. While you wait for the expert response, you might check two links found on the web with information that may help. I attached the links below.
by Manage My Life
March 25th, 2012
Answered in 10 minutes
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