The picture is there. Everyone except you knows what pipes are there.
Just face it, you are not knowledgable about pipes and you have another agenda, Jack Liu. 
Don’t let the bed bugs bite you, Jack Liu. LOL! 
Thank you.You are very good 
How can I consider you for help. I don’t even know your qualifications.
Make no mistake bro.
You could be a big mean poopie-pants for all I know.
You win…
I very sorry bro.
We all lose due to your intended inability to give us your information.
Do not hold yourself out to be some type of pipe inspection expert without
backing it up so I can have confidence in your abilities.
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It is not about winning, Jack Liu. It is about integrity.
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Hi,Marc.Thank you, you are very professional in your field, the forum is used to discuss the problems that usually arise and solve him and full communication. instead of asking me to publish what kind of information, I believe you,thks.
Yeah,Larry.Thank you for checking me,thank you very much,I’m a faker with nothing,that’s all.
Ok, Jack Liu…