SuperMatttheHero
New Member
A few months ago, I had cut out my bathtub trap and replaced it with a tubular plastic one. The old one was cast iron, and about 50% blocked with a rusty-buildup on the bottomside of the pipe. I was wondering if anyone has tried using CLR to fix a slow cast iron drain, thinking that it might be able to remove the rusty buildup inside (house is 55 years old)?
I e-mailed Jelmar and they had this to say:
"CLR, Calcium, Lime and Rust is safe for use in copper plumbing and septic systems and does remove rust so pouring it down your drains could help if the cause of the slow drains was in fact a rust buildup. The effectiveness of CLR comes with contact. I’m not sure if pouring it down your drains would have the 2 minutes of contact that usually takes to remove a buildup."
Thanks.
I e-mailed Jelmar and they had this to say:
"CLR, Calcium, Lime and Rust is safe for use in copper plumbing and septic systems and does remove rust so pouring it down your drains could help if the cause of the slow drains was in fact a rust buildup. The effectiveness of CLR comes with contact. I’m not sure if pouring it down your drains would have the 2 minutes of contact that usually takes to remove a buildup."
Thanks.