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Old 08-22-2008, 11:16 AM   #8
Motor31
Senior Member
 
Join Date: May 2005
Posts: 2,130
Sticks and bricks homes don't use rubber sealed valves on the plumbing or have plastic (non PVC) holding tanks. Using drano may just destroy the seal on your dump valves. It's very caustic stuff.
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Mike Nancy and the fuzzies
Fulltiming since June 2004
Volvo 660 MH tow vehicle
2005 MS 38RL
2007 Saturn Ion "toad"
2010 Gold Wing "piggyback"
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